- existential set
- мат. экзистенциальное множество
Большой англо-русский и русско-английский словарь. 2001.
existential set
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Existential quantification — In predicate logic, an existential quantification is the predication [The term predication in grammar means the predicate of a sentence which refers to subject and is an adverb or adjective, or equivalent, that describes an attribute of the… … Wikipedia
Existential graph — An existential graph is a type of diagrammatic or visual notation for logical expressions, proposed by Charles Sanders Peirce, who wrote his first paper on graphical logic in 1882 and continued to develop the method until his death in 1914.The… … Wikipedia
existential quantifier — noun The operator, represented by the symbol ∃, used in predicate calculus to indicate that a predicate is true for at least one member of a specified set. Some verbal equivalents are there exists or there is . See Also: universal quantifier … Wiktionary
Zermelo–Fraenkel set theory — Zermelo–Fraenkel set theory, with the axiom of choice, commonly abbreviated ZFC, is the standard form of axiomatic set theory and as such is the most common foundation of mathematics.ZFC consists of a single primitive ontological notion, that of… … Wikipedia
Von Neumann–Bernays–Gödel set theory — In the foundations of mathematics, von Neumann–Bernays–Gödel set theory (NBG) is an axiomatic set theory that is a conservative extension of the canonical axiomatic set theory ZFC. A statement in the language of ZFC is provable in NBG if and only … Wikipedia
Positive set theory — In mathematical logic, positive set theory is the name for a class of alternative set theories in which the axiom of comprehension* {x mid phi} exists holds for at least the positive formulas phi (the smallest class of formulas containing atomic… … Wikipedia
Inhabited set — In constructive mathematics, a set A is inhabited if there exists an element ain A. In classical mathematics, this is the same as the set being nonempty; however, this equivalence is not valid in intuitionistic logic. Comparison with nonempty… … Wikipedia
Union (set theory) — Union of two sets … Wikipedia
Kripke–Platek set theory — The Kripke–Platek axioms of set theory (KP) (IPAEng|ˈkrɪpki ˈplɑːtɛk) are a system of axioms of axiomatic set theory, developed by Saul Kripke and Richard Platek. The axiom system is written in first order logic; it has an infinite number of… … Wikipedia
The Nervous Set — the jazz musical born in St. Louis’ legendary Gaslight Square entertainment district in 1959, described the Beat Generation, the young people in post World War II, pre Vietnam America, swimming in disillusioned angst and apathy, angry, poetic an … Wikipedia
Diophantine set — In mathematics, a Diophantine equation is an equation of the form P(x1, ..., xj, y1, ..., yk)=0 (usually abbreviated P(x,y)=0 ) where P(x,y) is a polynomial with integer coefficients. A Diophantine set is a subset S of Nj [1] so that for some… … Wikipedia
