class of finite subclasses
1Class (set theory) — In set theory and its applications throughout mathematics, a class is a collection of sets (or sometimes other mathematical objects) which can be unambiguously defined by a property that all its members share. The precise definition of class… …
2Special classes of semigroups — In mathematics, a semigroup is a nonempty set together with an associative binary operation. A special class of semigroups is a class of semigroups satisfying additional properties or conditions. Thus the class of commutative semigroups consists… …
3Dravidian languages — Family of 23 languages indigenous to and spoken principally in South Asia by more than 210 million people. The four major Dravidian languages of southern India Telugu, Tamil, Kannada, and Malayalam have independent scripts and long documented… …
4Germanic strong verb — In the Germanic languages, a strong verb is one which marks its past tense by means of ablaut. In English, these are verbs like sing, sang, sung. The term strong verb is a translation of German starkes Verb , which was coined by the linguist… …
5English grammar — is a body of rules (grammar) specifying how phrases and sentences are constructed in the English language. Accounts of English grammar tend to fall into two groups: the descriptivist , which describes the grammatical system of English; and the… …
6French verbs — are a complex area of French grammar, with a conjugation scheme that allows for three finite moods (with anywhere from two to five synthetic tenses), three non finite moods, three voices, and three grammatical aspects. Conjugation French verbs… …
7Surreal number — In mathematics, the surreal number system is an arithmetic continuum containing the real numbers as well as infinite and infinitesimal numbers, respectively larger or smaller in absolute value than any positive real number. The surreals share… …
8Preposition and postposition — Prepositions (or more generally, adpositions, see below) are a grammatically distinct class of words whose most central members characteristically express spatial relations (such as the English words in, under, toward) or serve to mark various… …
9Context-free grammar — In formal language theory, a context free grammar (CFG) is a formal grammar in which every production rule is of the form V → w where V is a single nonterminal symbol, and w is a string of terminals and/or nonterminals (w can be empty). The… …
10Group theory — is a mathematical discipline, the part of abstract algebra that studies the algebraic structures known as groups. The development of group theory sprang from three main sources: number theory, theory of algebraic equations, and geometry. The… …
