Examples of English Collocations in Mathematical Texts Collected by Mati Pentus 2006 Errors are marked with *. \sk1 Math jargon \sk2 <== _ follows from Lemma 1 of [3] _ now follows from _ _ since [commaguidelines.html] , since , for (for ...) , as _ in view of _ in accordance with _ because [commaguidelines.html] This is evident from _ by virtue of _ due to _, which has already been proved \sk2 ==> Then _ Suppose that _; then * Suppose that _, then [Plenum] therefore , and, therefore, , and therefore * , and therefore, [Plenum] (and, therefore, _) * (and therefore _) [Plenum] Therefore, Therefore a+b=c, where a=2. [CMS14, 13.21] Hence it is apparent that abc=xyz. [CMS14, 13.25] Hence, it follows that it now follows that ? thus Thus, [Plenum] * So, [Plenum] * So _ [Plenum] Consequently, consequently By _, by Definition 3, Since _, by Lemma 1 _ * Since _, by Lemma 1, [Plenum] But by assumption by construction in view of _, since _, it follows that _ since _, we see that _ * since _, then _ as _, we have _ * as _, then _ According to _, Then, according to _, we have , whence whence , forcing guarantees that this implies this proves this amounts this entails this provides Accordingly, But then, using this, we get , which yields , so that _ This is only true for _ by the suppositions on _, From Lemma 1 it follows that From Lemma 1 we obtain It is immediate, from Lemma 1, that Use of Lemma 1 yields An application of _ to _ yields The application of Lemma 1 yields Applying _, we * Applying _ we Using (2.1), we get Combining (2.1) and (2.2), If we combine this with Lemma 1, Now if we recall (2.1), we arrive at the conclusion that we come to the conclusion that we draw the conclusion that we reach the conclusion that _ is a consequence of _ , which completes the verification of the conditions of Lemma 3 Now by the preceding paragraph it follows that m+n>5 * it follows m+n>5 [Sosinsky, p. 36] Owing to the choice of _ we have * Due to the choice of _ we have [Plenum] , and so [Plenum] On account of Lemma 1, [Plenum] By the above, we have As a result, we obtain , according to the definition, * , according to definition, Because of _, Since, for a Lie algebra, the Jacobian vanishes, * Since for a Lie algebra the Jacobian vanishes, \sk2 GET see that have obtain get show establish prove derive deduce conclude check verify note that * notice that [Sosinsky: OK. Plenum: incorrect.] * remark that observe that know point out holds we immediately get we have m+n>5 * we have that m+n>5 [Sosinsky, p. 36] we obtain m+n>5 we see that m+n>5 The following theorem holds. * theorem takes place \sk2 <-- _ if _ provided , provided , provided that _ whenever _ _ when _ in the case where _ unless , under the assumption that \sk2 --> if _, then whenver _, we have _ under the assumption/conditions of _, we have _ _ only if _ only when _ is a sufficient condition for _ be _ in the presence of _, the hypothesis _ implies the conclusion _ For invertible _, the adjoint _ also is invertible. , from _, it follows that _ \sk2 <--> iff if and only if [Plenum] _ for those and only those _ for which _ for _ to be _ it is necessary and sufficient to have _ a necessary and sufficient condition for _ be _ is that _ be _ Then the following conditions are equivalent: \sk2 NOT, AND, OR it cannot be that _ it is contradictory to assume that such that and but But, in fact, the object of this work is not only to find _ but also to use _ not only is it finite, but it even consists of _, although _ [Plenum] _ although _ [commaguidelines.html] Although _, _ [commaguidelines.html] , which is always _, , which of course are _, , which is impossible * , what is impossible in addition to or if either _ or _, then _ and, in addition, * and, additionally, ; otherwise x=1 if a=b and x=0 otherwise * else all the more neither _ nor _ , where _ is both _ and _ must also have This is impossible. it is impossible to express _ as _ cannot * can not [Plenum 2005/05] Let _ and let _. * Let _, and let _. [Plenum] we show that if _, then * we show that, if _, then [Plenum] are not equal to 13, 17, or 19 \sk2 FOR ALL, THERE EXISTS each _ may be written as _ * any _ may be written as _ for all _ such that _, we have _ for any _ such that _, it follows that _ for any _ and any _, we have _ _ for all x _ for any x \in M ?* _ for each x \in M for all integers n>3 for every integer n>3 * for every integers n>3 for every for any _, there exists a _ * for any _ there exists a _ [Plenum] , for any _, there exists there is a _ there exists a unique _ such that there exists some there exists only one There exists a set X for which f(X)=0. there exist no such there does not exist for an arbitrary semiring S for an arbitrary n>3 each of its submodules each of its subgroups is _ * every its subgroup is _ * each its subgroup is _ all of our results * all our results [Plenum] all of its elements * all its elements for all sufficiently large n, the coefficients _ are not all zero Let, for every _, [Plenum] For arbitrary _, for any three points * for every three points [Trzeciak] \sk2 LET Let _ be _ Suppose that m+n>5. * Suppose m+n>5. Suppose _ is a _ Suppose that m+n>5 is false. Assume that * Assume _ has the form _ [Plenum] Assuming that _, we obtain is assumed to In addition, suppose that Furthermore, assume that Suppose _ satisfies the assumption/assumptions of Lemma 1 Suppose _ satisfies the conclusion of Lemma 1 Let _ be an arbitrary _ can be assumed to be convergent * can be assumed convergent * can be supposed to be convergent Let _ be _, and let _ be _. Under the assumptions of Lemma 1, * In the assumptions of Lemma 1, Under the above assumptions, \sk2 CONSIDER consider _ Considering _, we obtain Turning now to _, we see that we begin by considering we consider we deal with we regard we treat Conversely _ For the converse, For the other direction, suppose that we shall take _ to be some fixed Let us now consider To be definite For the sake of being definite consider a _ whose _ _ has already been considered \sk2 TAKE put take choose pick We take for Q the _ take any _ such that _ take an arbitrary n>3 consider an arbitrary n>3 For _, take the _ constructed previously to each _ assign _ _ corresponds to _ let _ be given by _ let the function _ take each _ to _ let _ be the function that takes each _ to _ the function f defined on _ by f(x)=_ We can apply Lemma 1, taking _ * We can apply Lemma 1 taking _ [Plenum] \sk2 INTENTION Let us prove that Let us prove property (3). Let us show that We now prove that We must * We have to We also show how We claim that _. Indeed, * Really We want to it will be proved that It will appear later that We seek , which will be discussed in more detail in _, the next three theorems The purpose of _ is to prove * The purpose of _ is proving \sk2 PREPARE We will make use of In preparation for To do this we _ \sk2 IT REMAINS TO it remains to check that now we must only prove that To _, ? To _ we _ _ in order to it suffices to Then we only need to For this goal To compute _ it is sufficient to _ \sk2 END OF PROOF is thereby proved We have thereby proved that * We thereby proved that This completes the proof of Lemma 1. This concludes the proof. This is what was to be proved. To conclude the proof, it remains to note that The result is This contradiction proves the theorem. This contradicts Lemma 1. The theorem is proved. * contradicts to This contradicts n being odd. This leads to a contradiction with Lemma 1. Now we arrive at a contradiction with * Now we come to a contradiction with Hence we get a contradiction. We have a contradiction with We have obtained a contradiction with * We obtained a contradiction with [Plenum] and we reach a contradiction. * and we reach the contradiction. , a contradiction. This is the value we are seeking. * This is the value we are looking for. This graph enjoys the required property. , as required. , as desired. , which proves the theorem. By _, the desired result follows. \sk2 PROOF Proof. (Sketch) Here is a sketch of the proof. an outline of the proof We shall leave the proof to the next section. The proof is found in [3]. This lemma was proved by _ (see [3]). This was proved by _ in [3]. The proof is given in Section 2. `if' part `only if' part The proof is by reductio ad absurdum. Assume the converse. Suppose that, on the contrary, The proof is in 3 steps. Step 1: \sk2 INDUCTION The proof is by induction on/over _ by transfinite induction induction on the complexity of induction on the structure of formulas induction on derivations induction on the length of a proof induction on ordinal numbers we proceed by induction straighforward induction on _ by the induction hypothesis, by the inductive assumption, a mechanical inductive argument shows that The induction step must be proved for every t. the inductive step Using induction, * Using the induction, Since, by the induction hypothesis, \sk2 CASES Let us consider 2 cases: (a) _; (b) _. [Plenum] The following n cases arise: We consider 3 cases depending on _ We distinguish 3 cases. There are n possible cases to consider the case where the case that * the case when the situation where as a special case Case 1: in this case, subcases In our case, In either case, If, in this situation, we take \sk2 CONSTRUCT construct is constructed from exhibit a proper device show that this construction works prove that this reduction works For f, take the function _ constructed previously. Suppose that _ have already been defined \sk2 FOR SIMPLICITY For convenience, For the convenience of the reader, to facilitate Without loss of generality, we can assume that Without loss of generality it can be assumed that We may assume without loss of generality that There is no loss of generality in assuming Assume, for the moment, that For simplicity, suppose that For simplicity we shall discuss the case _ the general case differs from this special case in notation only. leaving the reader an easy transfer to the dual variant Although conceptually simple, this would complicate notation and would give no new insight. , which does not affect the argument \sk2 BELOW Below, * Below _ [Plenum] Further on, In the sequel, * In the sequel _ [Plenum] In what follows, \sk2 NEXT First, we need Secondly, First of all, * First of all _ [Plenum] Next _ In addition, Further, Moreover, * Moreover _ * Besides, Also, n runs through S. * Also n runs through S. [Plenum] Now _ Now let us show that * Let now [Plenum] * Now, let [Plenum] Let us now show that * Let us show now that Finally, we note that [Plenum] * At last, [Plenum] Finally(,) ? Let us remark that , in addition, , in turn, As to _, consider _ For _, note that _ We may now _ It then becomes possible to express In the following lemmas, we need several lemmas The following lemmas are needed for the proof of Theorem 3. Concluding this section, Then we apply This can be done as follows. Now we can prove Theorem 3. Let us first prove For our purposes, we also need \sk2 SIMILAR Similarly, Similarly to _, in the same way , as above, In a similar way, in a similar manner * in the similar manner Continuing in the same way, we see that Likewise Again The opposite implication is similar. In a manner analogous to that of The same situation holds for we only indicate necessary modifications Dually, is treated in a dual way The proof of _ is dual. is treated symmetrically the mirror image Exploiting the left-right symmetry, As in the algebraic case, * Like in the algebraic case, can still be defined as before a similar problem a similar formula a similar description By analogy with Theorem 1, \sk2 BUT However, Thus, Z is, however, a ring. , but , whereas Nevertheless, * Nevertheless _ [Plenum] nevertheless while _ _ , unlike On the one hand, On the other hand, nonetheless on the contrary Surprisingly, Curiously, despite * in spite of contrary to \sk2 THAT IS , that is, That is, , i. e., (i. e., I. e. (that is, _) this means that * it means that in other words, Namely, In fact, Actually, In short, For the sake of brevity, [Plenum] More precisely, In particular, , which means, in particular, that * , which means in particular that Specifically, _ asserts that _ _ states that _ , which means that In this way, * In this way _ * This way, \sk2 EVIDENT Evidently Obviously, Clearly Clearly, Of course, Observe that Note Apparently It is clear that It is obvious that It is evident that It is easily proved that it can be proved that (British English, American English) it can be proven that (American English) It is easily seen that It turns out that is trivially true is readily seen for trivial reasons , as is easily checked. It is routine to One easily proves _ The verification that _ is routine. For n=1, there is nothing to prove For the case AB=CD, there is nothing to prove There is nothing to prove if We leave the proof to the reader. The proof is omitted. The proof is trivial. We omit an easy proof. This lemma can be proved by standard methods of _ This lemma can be proved by direct calculations. a direct calculation shows that the obvious embedding $ A \subset B $ * the evident embedding $ A \subset B $ obviously holds folkloric exercise [Plenum] \sk2 WE NEED SOME TERMINOLOGY Now we shall give the following definition. Now we introduce the following concept. This suggests the following definition. we need some notation. We need some terminology. Let us introduce the following notation. * notations Let us establish some notational conventions. Let us fix some notation we use in this paper. We introduce the following definitions and notions. To prove this lemma, we need the concept of _ Before we give the proof of _, we need the concept _ the notion of differential equation We also fix the natural homomorphism _ \sk2 USUAL/UNUSUAL As usual, As customary we standardly extend _ to is extended in the natural way to concern Contrary perhaps to normal usage, We use the usual abbreviations _ for _; _ for _ We follow the customary approach by using the definition \sk2 USUALLY More generally, * More generally _ [Plenum] In general, In the general case, for the most part \sk2 DEFINE denote by _ any _ denote by _ the _ that _ a _ is a pair _, where _ we say that _ if [Lambek, Sipser] we say that _ iff (?) we shall say that _ a _ is called a group if the following conditions hold: a _ is said to be a group if _ a _ is a group if _ a group is a _ such that _ Suppose _. Then this _ is called _ Suppose _. Then any _ such that _ is called _ and is denoted by _ If, _ then we say that _ is _ and write _ By definition, put Z = _ * By the definition, define the _ of two _ as _ For any _, _ * For any _ _ [Plenum] For _, Here _ Hereafter, [Plenum] ? Hereafter _ We now agree to If _ take _ to _ we take _ to _ one takes _ to _ _ is taken to be _ _ generates _ _ will _ _ is intended to _ let _ _ by _ we _ define _ to _ put _ to _ _ is defined to _ mean be denote stand for by a _ is meant a we refer to _ as let us refer to _ as _ is referred to as we write ABC for ((AB)C) we write ((AB)C) as ABC we use _ as _ any _ is called _ , which we shall call _ setting _ we get , or, if there is no danger of confusion, _ consists of _, subject to the following conditions: somewhat wider sense we say that _ or _, according as _ or _ _ is defined inductively by the rules: we call a _ _ if * we term _ by _ Define a _ by the prescription _ if _ the elements of _ are called _ _ is _ whose _ is determined by the following condition: _ are named for John Smith _ is a _ along with a _ _ is as follows. in the following way: if it satisfies one of the following equivalent conditions: if, given a binary operation + defined in V, the following four properties hold for all $ a , b \in V $: _ is described as being linearly independent Given _, one can define _. These are _. We give three definitions: a binary operation labeled + \sk2 NOTATION We adopt the convention notation Here denotes , or simply abbreviate _ to _ is introduced as an abbreviation defined as is an abbreviation for _ We write , written _, , written with the symbol _, , written with the _ symbol, will be symbolized , which we denote by _, is designated by the _ symbol the letter _ (with or without indices) is reserved for _ _ is understood according to the equality _ _ is to be read as We abbreviate _ as By convention, we take it is clear from the context without introducing ambiguity For _, by a _ we understand any _ * For _, under a _ we understand any _ by _, we shall understand We let \nabla be the _ and we call \nabla the _ We will write _ to indicate that _ _ inherits a natural _ from _ notational collision Throughout this paper throughout the calculations In the notation of Definition 3 above, we have _ \sk2 RANGE capitals capital letters, X, Y, etc., Latin letters capital Greek letters We use capitals for we shall usually employ capitals as variables ranging over all will be represented by capitals and will be called range over ranged over by The metasymbols _ range over meta-variable ranging over In stating the axiom schemata and inference rules, A, B, C are any _, p is any _ \sk2 REPLACE _ arises from _ by _ results from becomes _ if is obtained from _ by replacing _ by _ at some occurrence of _ in to replace _ by _ in _ to come from _ by interchanging _ with result of substituting _ for _ in _ _ can be renamed without affecting _ a substitution of _ into the polynomial \sk2 CLAIM assertion clause the condition _=_ the following condition: [Plenum] * the condition: [Plenum] the following property: statement fact observation claim proposition lemma corollary consequence conjecture digression remark Concluding remarks desired conclusion Introduction Preliminaries the fact that the converse statement principle equality equivalence draw the conclusion that * make the conclusion that Using assertion (5) of item (d), item I(2) * item I (2) [Plenum] \sk2 FOR EXAMPLE For example, for example(,) for instance, , say \sk2 INTUITIVELY intuitively _ is to be thought of as In intuitive language, the theorem says that \sk2 MODIFICATION modification the resulting system one has to adjoin to the system _ _ \sk2 ADJECTIVES usual ordinary analogous to more general above-sketched given indicated mutually exclusive auxiliary earlier-mentioned suitable concerning replaceable interchangeable substitutible for each other in the following distinct from three (not necessarily ditinct, possibly empty) words applicable essentially stronger the required subalgebra the _ under consideration classical * classic the smallest index such that countably many the underlying structures twofold \sk2 COINCIDE to coincide is the same as are precisely those \sk2 SYMBOLS between parenthese a close parenthesis quasi-quotes \ulcorner \urcorner we routinely drop the parentheses from nonterminal (American English) \sk1 Front and back matter \sk2 ACKNOWLEDGEMENTS Acknowledgements [Elsevier, Oxford: OK. Plenum: incorrect.] Acknowledgment(s?) [IEEE] Acknowledgments [Plenum] Professor Dr. The author is grateful to I am deeply grateful to most grateful I would like to thank I also thank for constant attention to this work (sc. adv.) for useful discussions for helpful discussions for discussing matters treated here for supportive environment The presentation of _ benefited greatly from suggestions of These suggestions are gratefully acknowledged. for a number of comments on a draft of this paper for finding an error in our first draft for making several suggestions to improve the exposition _, as well as for _, for his encouragement to extend our original work for his valuable help for providing information about for their hospitality , particularly Prof. J. Smith This research was partially supported by RFBR grant 12-245. This work was partially supported by grant ABC-12-345. * The work * is partially supported * by the grant ABC-12-345 by a "Universitety Rossii" grant for helpful guidance and assistance for useful comments and for _ for very valuable comments on a preliminary version of this work The second author wishes to express his gratitude to for many helpful and stimulating discussions while writing this paper during the preparation of this paper for several very constructive suggestions a number of on the subject of also my thesis advisor, _, my scientific adviser, Prof. J. Smith, [Plenum] my advisor, Prof. J. Smith, [Plenum] Profs. A. B. Ivanov and J. Smith [Plenum] the research reported in this paper this research was initiated during the author's visiting stay was finished during the stay has been granted by The idea of the paper originated during author's stay at the university of I The author The second author would like to wish to thank express my gratitude to am deeply grateful to most very helpful useful valuable stimulating constructive a number of several many discussions conversations suggestions comments on guidance assistance encouragement to their hospitality discussing finding an error in our first draft the subject of a preliminary version of a draft of this work this paper present paper matters treated here while writing during the preparation of to improve the exposition to extend our original work who shared their insights and experiences so willingly indebted to very helpful in formulating these ideas thoughtful suggestions and improvements much of the progress made in these studies Published with the kind permission of the journal's editorial board and authors. partially supported by the Russian Foundation for Basic Research and by the Russian Ministry for Education \sk2 OTHER BACK MATTER Conclusions Appendix Appendices \sk2 PREAMBLE Dedicated to Professor _ on the occasion of his _th birthday This issue is dedicated to \sk2 INTRODUCTION previous work involves _ we consider certain problems related to _ the problem on the isomorphism of * the problem about isomorphism of [Plenum] a question on the isomorphism of * a question about the isomorphism of questions on the completeness of _ are considered some facts on * some facts about problems on the classification of In _, appropriate _ are/were constructed the aim of this paper is to prove the following this generalizes results of Ivanov * results by Ivanov a slight generalization of _ this strengthens a theorem of _ using methods of _, we show that as related to technically involved elaborated logically guided essentially incorrect partial further the so-called local case general resulting familiar from Recently [3], starting from aspects problems survey framework behaviour an early proof positive results main goal partial results towards technique a proof technique ultimate solution of detailed verification pattern have been discussed design investigated into appear can be adapted expect have been obtained attempt a general solution refine the methods of these efforts fail in provide is modified handle transforming reducing explain the basic terminology and notation achieve the same effect is motivated motivating idea Section 3 is devoted to the proof of Theorem 3. a theorem on it was pointed out that close connection between is concerned with * this paper concerns the major result of remain open this is an open problem at present Whether P includes Q is an open question. The existence of _ is still an open question. This question has not yet been solved. In Stanley's work [3] the following problem has been raised: Is there _? in the works of Janet [3] and Thomas [4] * in papers by Janet [Plenum] provide a quick review we give a brief review of some recent results * a small review considerations syntactic methods syntactic results semantic results develop a theory in group theory * in the group theory from matrix theory from category theory in model theory the NBG theory extend elaborate advance introduced in presents present a method determine approach analyze analysis proof covers give include explain handle treat capture use employ adopt accompany go on move on play a key role summary outline expository discussions studied from _ perspective (for details, see [3]) [Plenum] see [3] and the references therein [Plenum] * see [3] and references therein [Plenum] (cf. [3]) * (compare with [3]) [Plenum] (see the paper [3]) in his paper [3], _ proved that _ was considered by _ in his book [3] are also discussed in detail in [3] stronger than Lemma 1 the following condition is weaker than (2.1) the article/section is devoted to can be adapted for the present purpose can be adapted for the latter purpose for purposes of this exposition has attracted the attention of many algebraists [Plenum] confine attention to the question is not addressed here Ivanov prposed calling them _ reasoning * reasonings Currently, complete description complete answer * full answer further studies are necessary In the second section, we * In the second section we In this paper, we * In this paper we In [3], A. Ivanov introduced We shall briefly discuss an extension This paper contains some preliminary results. Section 1 includes preliminary definitions. to include in it for free algebras this was noted by Our approach is equivalent to Ivanov's on a certain class of The function obtained the name of Dehn function. At present * Now there are results can be done at present by * can be done today by the theory of _ has been developed on the basis of the theory of the propositions also give some intuition on how to the last few years the classical results on * the classical results about [Plenm] the 1930s and 1940s [CMS14, 8.40] * the 1900s [CMS14, 8.40] * the 1910s [CMS14, 8.40] the twentieth century [CMS14, 8.40] during the eighties and nineties [CMS14, 8.40] in the last few decades in recent decades attempts at using standard bases have shown that * attempts of using he was the first to introduce * he was the first who introduced fundamental difference * principal difference we focus our attention on the following result of Ivanov * the following result by Ivanov two approaches toward the definition of a topological prime radical * two approaches for the definition of we are considering _ with respect to _ \sk2 REVIEW clear impressive thoroughly relatively large helpful harmonious enjoy a growing popularity among broad range systematic account The author's central claim is that The author's strategy is to one of the primary threads of the paper is \sk1 Grammar \sk2 CAPITALS non-Euclidean (in title) Product-Free Calculi and Non-Archimedean Fields (in title) Maps That Are Not Invertible in the Syntax (in title) The Case where the Rank Is Countable the lemma * the Lemma [Plenum] Noetherianity $\pi$-Monic polynomials exist. * $\pi$-monic polynomials exist. [Plenum] the Diamond lemma * the Diamond Lemma [Plenum] \sk2 HYPHENS zero divisor nonzero-divisor the grammar is context-free [Partee, 2005] * the grammar is context free [Partee, 2005] this well-known theorem this theorem is well known As is well known in the theory of _, _ is left-associative invertibility-preserving operators the just-defined topology self-injective * selfinjective [Plenum] pointwise convergence * point-wise [Plenum] \sk2 ARTICLES the Lagrange theorem Lagrange's theorem * the Lagrange's theorem the famous Lagrange's theorem this theorem of Lagrange the area theorem the density theorem Taurinus's results Taurinus' results Gauss' theorem Zorn's lemma the Hahn--Banach theorem Hahn and Banach's theorem * Hahn--Banach's theorem the Minkowski functional * Minkowski's functional the Thomas division Peano arithmetic Peano's successor function of the second order the notion of equality on the set of _ [Lambek] the notion of regular expression [Sipser] the notion of almost orthogonality [Plenum] the notion of differential equation the definition of regular expressions [Sipser] the definition of a uniformly recurrent pseudoword [Plenum] the definition of a partition [Plenum] * the definition of partition [Plenum] * By definition of a partition, [Plenum] the concept of a vector space [Wikipedia] the concept of a correct universal algebra [Plenum] the concept of involutive monomial division was proposed [Plenum] the almost orthogonality condition is a maximal set of _ a finiteness condition prove the continuity of _ on the isomorphism A \cong B the isomorphism of the connection between computability and completeness the correctness of this definition the compactness of the equivalence of the continuity of the Lambek calculus a group of order n * a group of the order n The group G has order n. an element with weight 3 * an element with the weight 3 every subset of size n an algebra with generators _ an algebra of arbitrary rank in such a way that proved such a statement for such a finitely generated ideal exists * such finitely generated ideal exists for such a set * for a such set every such category * every such a category condition (3) of Theorem 2 * the condition (3) [Plenum] equation (2.4) [CMS14, Fig. 13.2] of the form (3) the least of the natural numbers k with the property _ the pair property the first and second summands with the help of Proceedings of the International Algebraic Conference on the Occasion of the 90th Birthday of A. G. Kurosh on the Occasion of _ and _ the Max-Planck-Institut f\"ur Mathematik a minimal generating set in homogenization theory in quantum group theory in the theory of quantum groups the theory of topological groups in the weak and strong sense to present a mathematical approach the third and fourth lines * the third and the fourth lines the coincidence of their algebraic geometries with the usual ring operations * with usual ring operations the case of a finite group the case of finite groups implemented in the C++ language from right to left * from the right to the left two of the n_1,...n_k * two of n_1,...n_k with the help of a computer * with the help of computer has the natural structure of a Poisson algebra * has the natural structure of Poisson algebra in view of the properties of * in view of properties of [Plenum] the example of a pseudouniversal class in the Z-grading a similar argument Note that r does not depend on the choice of the element b. This number depends on the choice of the basis. \sk2 THAT/WHICH there exists _ that * there exists _ which [Plenum] the smallest set that * the smallest set which the smallest such M for which denotes the _ that * denotes the _ which [Plenum] Suppose G is a group that * Suppose G is a group which [Plenum] We construct a group that satisfies * We construct a group which satisfies Abelian groups that are _ are considered in [3]. * Abelian groups which are _ [Plenum] contains a _ that we obtain a _ that a diagram D that contains two squares the diagram D, which contains two squares, an identity s=t that holds in any Leibniz algebra the identity x(yz)=xyz-xzy, which holds in any Leibniz algebra, \sk2 POSITION OF ADVERBS may also be * may be also we also have there also exists * there exists also [Plenum] will also be denoted this set is also finite * also this set is finite [Plenum] we again get Consider also [Partee, 2005] Also be sure [Partee, 2005] * Be also sure [Partee, 2005] Also set * Set also [Plenum] Note also that Also note that Again, set * Set again [Plenum] Let us also consider It now follows similarly to _ that * It follows now Now suppose that we have already Suppose now that we have already Now consider the formula Consider now the formula Let us now consider Now let us consider Let us now prove that Now let us prove that We now show that Now we show that \sk1 Areas of mathematics \sk2 GRAPHS directed graph digraph undirected graph associated undirected graph vertex (pl. vertices) directed edge undirected edge endpoints of an edge initial vertex of an edge terminal vertex of an edge reduced path reduced form of a path simple reduction circuit loop planar graph the number of edges eminating from a vertex v is called the degree of v the valence of v _ is drawn by connecting circles representing _ together by an arrow if _ the arrow originating at _ and ? arrowhead pointing to _ the apex of the cone (pl. apices) cone with apex _ \sk2 CATEGORIES category object morphism identity domain codomain full subcategory ordered class _ precedes _ _ follows _ _ is left adjoint to _ \sk2 STRINGS a finite sequence (possibly of length 0) of these symbols a string (or word) over an alphabet the juxtaposition of For any finite set _ of symbols, we denote by _ the set of all finite strings of symbols from _. the empty string _ the empty word of length 0 will be written _ If _ is a subset of _, we say that _ is a language over the alphabet _. non-empty strings over _ length of a string the rightmost * the right-most [Plenum] obtained by juxtaposing the reversal of a string the language of properly nested parentheses [Sipser] all words ending in c * all words ending by c the lexicographic order in lexicographic order \sk2 INFERENCE RULES the calculus admits the following axioms and inference rules: these calculi contraction rule exchange rule weakening rule Sequents have the form right-sided sequents axiom schemes to drop an axiom rules of inference derived rules of inference conservative extension of repeated application of _ rules premise premiss conclusion the final step the rule can be eliminated from to drop the rules deducible from lies faithfully embedded in the introduction rule for / on the right the result of adjoining _ as an axiom to _ \sk2 SETS set theory set family a family _ of _ indexed by _ collection disjoint union Cartesian product a proper superset of stable subset a countably infinite set a countable set countably many denumerably many (denumerably infinite) cardinality of a set exactly one unique non-void nonvoid (American English) non-empty disjoint parts proper inclusion persistent , which may be empty, a binary relation on the set _ a limit ordinal a successor ordinal ? limiting ordinal go in ascending order * stand in ascending order the set of natural numbers the reverse inclusion the reverse inequality All _ have the same cardinality. Y contains X and is contained in Z [Wikipedia] the intervals are specified by their end points the axiom of choice * the choice axiom a (possibly empty) word * (possibly, _) [Plenum] total order = linear order well-order = well-ordering = well-ordered set \sk2 FUNCTIONS single-valued binary relation valuation onto injection identity a one-to-one mapping * an one-to-one mapping are in one-to-one correspondence with there is a one-to-one correspondence between _ and _ 1-1 function _ from _ into _ to preserve order to preserve complementation to map _ to _ the restriction of f to _ the extension of f to X * the extension of f on X _ is majorized by _ the map of R to R such that _ (total function) the map from R to R such that _ (partial function) a function whose domain is _ the inverse function the inverse image of _ under the map _ the sequence tends to $ A $ as $ n \to \infty $ the sequence tends to infinity \sk2 FIRST-ORDER Each function and relation symbol of _ comes with a fixed arity. individual variables inconsistent contingent arithmetical placed subformula concrete occurrence primitive term constant logical constant propositional letter functional symbols having arity r \sk2 MODELS formulas * formulae [Plenum] a formula is valid in a model valid the intended semantics \sk2 ALGORITHMS given _, find _ to find _, multiply _ by _ the algorithm of computation of involutive bases the involutive bases computation algorithm an algorithm for constructing recursively enumerable deterministic one-tape Turing machine (DTM) a two-way infinite sequence of tape squares a transition function an instantaneous description of a Turing machine is given by a quadruple _ the smallest contiguous portion of the tape that includes _ a DTM program recognizes an algorithm solves a polynomial translation from a language _ to a language _ satisfiability truth assignment a clause is satisfied by a truth assignment effectively decidable the decidability of the word problem the membership in G is decidable decision procedure the process offers an effective test whether is a consequence of _ with respect to the production _ the inverse of the production _ the semi-Thue production associated with the normal production associated with antinormal production A combinatorial system _ consists of a single nonempty word called the axiom of _ and a finite set of productions. a word on a combinatorial system is a combinatorial system all of whose productions are a proof in a combinatorial system a step of the proof a theorem of a combinatorial system configuration _ yields configuration _ in one step after at most _ steps after some number, possibly zero, of steps By the decision problem for a combinatorial system, we mean the problem of determining, of a given word, whether or not it is a theorem of the system. We say that the decision problem for _ is recursively solvable or unsolvable, according as _ is or is not a recursive set. the problem (1): given _, to decide whether _ whose alphabet is that of _ with some additional symbol we form _ by adjoining to _ the productions _ computational complexity the complexity of the derivability/satisfiability problem for _ elementary operations are performed in constant time Provability of multiplicative formulas is NP-complete. The decidability of this fragment is an open problem. an encoding of Turing machines by constant-only formulas this encoding is reminiscent of the standard proof of the PSPACE-hardness of this encoding is sound this encoding is faithful \sk2 LOGIC accessibility relation deducible relevant logic fusion embedding of _ into validity an instance of simultaneous substitution application of modus ponens designated truth-values is closed under the rules a logic has the Craig interpolation property a first-order language * first order language second-order logic recursion-theoretic * recursion-theoretical model-theoretic proof-theoretic set-theoretic noncommutative linear logic to determine whether a given formula is a tautology * to define whether The list of axioms is complete. * The list of axioms is finished. the power of the continuum elementarily equivalent to * elementary equivalent to Linear negation is a defined concept, not a basic connective. One may define negation by recursion on the structure of formulas. \sk2 ALGEBRA alphabet defining relations Abelian group a simple group unit a commutative ring with unit [Joyner, Kreminski, Turisco] algebra with unit element [Kovalenko] an associative ring with unity [Lambek] a commutative ring with identity [Kurakin] not equal to the identity [Plenum] unity element a root of unity idempotent complemented lattice proper ideal two-sided ideal to operate on _ to operate on the left on _ the identity map * the identical map the inverse of the inverse value of kernel image the preimage of short exact sequence commutative diagram semigroup neutral element irreducible closure under the reflexive, transitive closure the left-cancellation law to distribute over the distributive law distributivity Multiplication is both-side distributive over addition. to commute with For notational convenience, it is usually assumed that _ associates to the left we associate multiplication to the left a left-normed Lie monomial _ takes precedence over _ _ has higher precedence than _ conjunction has precedence over disjunction products bind more tightly than sums the order of strength of _ is the natural one: _ is performed before _ Brauer groups infinite-dimensional a finite-dimensional vector space over C H is finite dimensional a polynomial of degree n over a ring R a polynomial in three variables a polynomial with all real distinct roots x_1<x_2<...<x_n the leading coefficient * the elder coefficient the coefficient of the variable x * the coefficient at the variable x a prime number _ is a group with respect to the sum operation _ is closed with respect to finite intersections Multiplying both sides by _, Subtracting the first equation from the second, a vector space over a field F vector-space homomorphism over a field of arbitrary characteristic F has characteristic not equal to 2 a polynomial in characteristic p the greatest common divisor of u and v the least common multiple of all elements of X Each element v has an additive inverse -v. the inverse matrix eigenvector * proper vector eigenvalue * proper value an n-dimensional vector space with base _ ? a finitely generated free R-module with the base X a finitely presented group a Hamel basis (pl.: Hamel bases) This turns (N,+) into a commutative monoid with identity element 0. existence of an additive identity element in _ existence of additive inverse in _ the additive inverse to z _ forms a vector space over _, with component-wise operations _ preserves sums and scalar products rings of differential polynomials * differential polynomial rings the polynomial conjugate to F(x) f and g are conjugate the set is closed under taking inverses Sylow 2-subgroup of G the center of an Algebra (American English) the Jacobson radical factor group ? factor-algebra The group G is torsion-free. 3 divides 12 12 divides by 3 12 can be divided by 3 a decomposable module an indecomposable module _ is unique up to isomorphism Up to the analytic isomorphism, a singular-value decomposition a finite-rank group a not-identically-zero element Jordan-form analogs can be written in matrix form as the matrix-power operation the factor-rank function this kind of algebra of solvable type a Vandermonde system the field of rational numbers a left module over the ring R the generators have degree at least m the quotient of M and R a direct-sum decomposition the matrix with 1 in the (i,j)-position and 0's elsewhere is a multiple of commutation relations the operator of right multiplication by m * the operator of the right multiplication linear in all variables nearly associative rings nonassociative [Plenum] \sk2 REDUCE redex reduct to arise from _ by reduction directly reduces to can be reduced via the above rules to \sk2 DUAL symmetric dual principle of duality \sk2 TOPOLOGY AND GEOMETRY a compact set the space X is arcwise connected * the space X is linearly connected a geometrical figure a curve in space a curve in the plane closedness of this topological space has a singularity at a point in Euclidean space a compact set in * a compact in a variety of finite dimension this set of vectors spans the whole space reflection about a line geometric theorems geometric topology algebraic topology algebraic curves in coordinate-free form the Tychonoff product of toplogical spaces the Tychonoff topology [=] the product topolgy a neighborhood of zero (American English) * neighbourhood [Plenum] a basis of neighborhoods of zero \sk2 MATHEMATICS _ is uniquely determined by _ expression for law preservation the language consisting of the pigeonhole principle the Pigeon-Hole Principle ancestor an abstract symbol the additional symbols an abstract element we employ _ method the Graev method to possess to correspond to to satisfy to expand equipped with with respect to arranged in tree form to assign to depicted attach to each _ a _ with each _ we shall associate _ to each type X we associate the type MX the following conditions are the following three conditions are satisfied * the three following conditions are satisfied , except for the first column, everywhere except for a finite number of except perhaps for a finite number (except for the cases where _) Only a finite number of coefficients are positive. there are only a finite number of possibilities * there is only a finite number of boundary-value problems performing the change of variables _ in _, we obtain on the right-hand side of [Plenum] the right hand side [Lambek] a characterization of _ in terms of _ can be expressed in terms of _ In terms of _, _ can be rewritten as _ a redundancy criterion for _ we obtain a criterion of _ _ is well defined _ equals _ _ is equal to _ _ is less than or equal to _ _ is greater than or equal to _ to integrate _ in x quadratically integrable on the interval _ Riemann-integrable functions * Riemann integrable functions think of _ as _ _ is subject to _ _ shares the restriction on _ with _ the first n elements the first three lemmas Just as in the commutative case conditions (1) and (2) are equivalent. the number is one larger than canonical parameterization (IEEE) satisfy the conditions of Lemma 3 fulfill the condition (American English) meet the conditions maintain the conditions obey the conditions enjoy the conditions can be expressed as _ in a unique way * in unique way has the following form: express _ as infinite linear combinations of cannot be represented as finite linear combinations of can be represented in the form an equation with three unknowns a consistent system of equations this inequality remains valid for characterize theoretical approximation This relation can be rewritten into * This relation rewrites into We arbitrarily order the words of length n. Here the overbar means taking _ counterexamples One possible method of construction can be described by the following procedure. the continuity argument n different variants * n various variants (n-1)-dimensional is bounded above by _ is bounded from above by _ a unique identical-on-R supermonomorphism In the discrete case, a graph each of whose components is a tree * a graph whose each component is a tree must be an integer * must be integer must be negative has a representation of the form has a representation as a linear combination of Such a representation is unique. the representation n=a+b/c the (m+1)th column We reproduce the proof for the convenience of the reader. this result and some of its corollaries * some its corollaries All other entries are zero. large number larger number the largest number the greatest number larger class Then m is greater than n. small number smaller number the smallest number the least number the modulus of a number x, written as |x|, \sk1 General English it makes no difference whether when explicitly indicated takes the form may be regarded as can be viewed as , respectively, The following condition is satisfied for all _: _ , no longer , as well as retracts, coproducts, and products as well as Rees factor acts are _ to confine ourselves satisfying fulfilling provides a way of describing a way of constructing * a way to construct [Plenum] it serves the purpose of ensuring that rather than is intended to consists of is axiomatized by (not necessarily _) where necessary Renumber (if necessary) the elements of * Renumber (if it is necessary) in one sense or another in the sense of Lyapunov doctoral thesis doctoral degree PhD we recall that * we remind that Recall that * Remind that we recall the results of S. Shelah in the present context For later reference, we point out the following equivalences/principles: and vice versa Instead of _ it would have sufficed to take _ , instead of _, [Plenum] mathematical practice for verification of whether _ it is sufficient to a complete answer to the question of when _ holds the question as to for which _ the question of whether _ * the question whether _ [Plenum] Consider the following question: What is _? This raises the question: What is _? We end by posing one more question. pose the question of an algorithm that * put the question under one another * one under another into one another are isolated from one another shown in Fig. 3 only one _ is permitted between _ _ has only one _ the finest among all topologies on _ * the finest of all topologies on _ Each move depends only on the present position, not on _ on page 33 both the syntax and the semantics of type theory Both functions are piecewise linear. to interpret the language At the same time, at the same time * in the same time a 20-minute talk a 20 minute talk , depending on whether depending on the fixed module P * depending of the fixed module P three arbitrary elements * arbitrary three elements [Plenum] there exist three other variants the new three items above the next three cases * the three next cases [Partee, 2005] the last three functions * the last 3 functions [Plenum] * the two last cases [Partee, 2005] * the two first cases [Partee, 2005] * first several coefficients [Plenum] the latter two cases the two left lanes [Partee, 2005] the left two lanes [Partee, 2005] the previous two cases [Partee, 2005] the two previous theorems [Partee, 2005] the two following cases [Partee, 2005] the two preceding cases [Partee, 2005] the two biggest [Partee, 2005] ? the biggest two [Partee, 2005] three such elements all three expressions is of great importance to us * is of great importance for us in the context where summarize [Plenum] our interest in these questions * our interest to is of interest in itself as may seem at first glance To prove that the central extension is, in fact, universal, we consider _ We require that _ be _ We will not make any distinction between _ and _ the possibility of considering * the possibility to consider a tool for finding _ * a tool to find _ As was noted before, * As it was noted before, In any case, * Anyway, neither an upper nor a lower semilattice the lattices and their number of atoms and coatoms Also, as is shown in _, As was shown above, * As it was shown above, As was shown before, There exists a criterion of _, namely, isomorphism between _ and _ a convenient way of measuring _ the bibliography therein * its bibliography mentioned at the beginning of the article , as has been mentioned above, at the end of to a large extent to a great extent we are now in a position to define _ in the diagram In dealing with _, * When dealing with [Plenum] a priori Syzygies allow one to solve various tasks. * allow to solve [Plenum] allows one to use The part on Q being projective is obvious. * The part about Q being projective is obvious. problems of a different kind We are interested in whether _ * We are interested whether _ , as in the paper [3] * , like in the paper [3] there is a substantial difference between _ and _ differs substantially in methods * differs essentially in methods [Plenum] * differs by methods [Plenum] a complete list of them * their complete list is of the kind _ * has the kind _ can be equal to one of the numbers 13, 17, or 19 the possibility of implementing * the possibility to implement has an analog in the case of * has some analog in the case of * analogue [Plenum] for our purposes one of these cases is realized * one of these cases realizes Theorem 1, together with Lemma 1, gives examples of * Theorem 1 together with Lemma 1 give examples of These monomorphisms, together with the homomorphism _, generate Theorem 1 combined with Lemma 1 immediately implies the following corollary. , in general, a symbol other than z A first attempt would be to use _ vs. a particular case of this result a particular case of the notion of a representative function In connection with this, in exactly the same way nonclassical (American English) semigroup self-consistent a, b, and c "minor planet," asteroid,\footnote{} [CMS14, 15.8] "convenient"\footnote{} [CMS14, 15.8] free\footnote{} --- and not only free\footnote{} --- groups [CMS14, 15.8] Siberian Branch of the Russian Academy of Sciences Corresponding Member, Russian Academy of Sciences UDC M. V. Lomonosov Moscow State University ? Mathematics Institute, Russian Academy of Sciences Original article submitted January 1, 1970; revision submitted June 1, 1971 labelled (British English) labeled (American English) labeling (American English) have gotten (American English)