Zermelo set

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• Zermelo set theory — Zermelo set theory, as set out in an important paper in 1908 by Ernst Zermelo, is the ancestor of modern set theory. It bears certain differences from its descendants, which are not always understood, and are frequently misquoted. This article… …   Wikipedia

• 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

• Set theory — This article is about the branch of mathematics. For musical set theory, see Set theory (music). A Venn diagram illustrating the intersection of two sets. Set theory is the branch of mathematics that studies sets, which are collections of objects …   Wikipedia

• set theory — the branch of mathematics that deals with relations between sets. [1940 45] * * * Branch of mathematics that deals with the properties of sets. It is most valuable as applied to other areas of mathematics, which borrow from and adapt its… …   Universalium

• Zermelo Fraenkel — Die Zermelo Fraenkel Mengenlehre ist eine verbreitete axiomatische Mengenlehre, die nach Ernst Zermelo und Abraham Adolf Fraenkel benannt ist. Sie ist heute Grundlage fast aller Zweige der Mathematik. Die Zermelo Fraenkel Mengenlehre ohne… …   Deutsch Wikipedia

• Set of all sets — In set theory as usually formulated, referring to the set of all sets typically leads to a paradox. The reason for this is the form of Zermelo s axiom of separation: for anyformula varphi(x) and set A, the set {x in A mid varphi(x)}which contains …   Wikipedia

• Zermelo — Ernst Zermelo in Freiburg, 1953 Ernst Friedrich Ferdinand Zermelo (* 27. Juli 1871 in Berlin; † 21. Mai 1953 in Freiburg im Breisgau) war ein deutscher Mathematiker. Zermelo war der Sohn eines Gymnasialprofessors und besuchte das …   Deutsch Wikipedia

• Zermelo-Fraenkel-Mengenlehre — Die Zermelo Fraenkel Mengenlehre ist eine verbreitete axiomatische Mengenlehre, die nach Ernst Zermelo und Abraham Adolf Fraenkel benannt ist. Sie ist heute Grundlage fast aller Zweige der Mathematik. Die Zermelo Fraenkel Mengenlehre ohne… …   Deutsch Wikipedia

• Set (mathematics) — This article gives an introduction to what mathematicians call intuitive or naive set theory; for a more detailed account see Naive set theory. For a rigorous modern axiomatic treatment of sets, see Set theory. The intersection of two sets is… …   Wikipedia

• set theory — The modern theory of sets was largely inspired by Cantor, whose proof that the set of real numbers could not be put into a one to one correspondence with the set of natural numbers opened the door to the set theoretic hierarchy, and to the study… …   Philosophy dictionary

• Zermelo–Fraenkel set theory — The first rigorous axiomatization of set theory was presented by Ernst Zermelo (1871–1953) in 1908, and its development by A. A. Fraenkel (1891–1965), adding the axiom of replacement, is known as ZF. If the axiom of choice is added it is known as …   Philosophy dictionary