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# cofinal subset

subconjunto cofinal

English-Spanish mathematics dictionary. . 1964.

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• Cofinal (mathematics) — In mathematics, let A be a set and let ≤ be a binary relation on A. Then a subset B of A is said to be cofinal if it satisfies the following condition: For every a ∈ A, there exists some b ∈ B such that a ≤ b. This… …   Wikipedia

• cofinal — /koh fuyn l/, adj. Math. of or pertaining to a subset of a set with a partial order relation, as greater than or equal to, in which corresponding to each element in the set is an element in the subset that is in relation to the given element. [CO …   Universalium

• cofinal — /koh fuyn l/, adj. Math. of or pertaining to a subset of a set with a partial order relation, as greater than or equal to, in which corresponding to each element in the set is an element in the subset that is in relation to the given element. [CO …   Useful english dictionary

• Cofinality — Not to be confused with cofiniteness. In mathematics, especially in order theory, the cofinality cf(A) of a partially ordered set A is the least of the cardinalities of the cofinal subsets of A. This definition of cofinality relies on the axiom… …   Wikipedia

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• Well-order — In mathematics, a well order relation (or well ordering) on a set S is a total order on S with the property that every non empty subset of S has a least element in this ordering.Equivalently, a well ordering is a well founded total order.The set… …   Wikipedia

• Bounded set — In mathematical analysis and related areas of mathematics, a set is called bounded, if it is, in a certain sense, of finite size. Conversely a set which is not bounded is called unbounded. Definition A set S of real numbers is called bounded from …   Wikipedia

• Real closed field — In mathematics, a real closed field is a field F in which any of the following equivalent conditions are true:#There is a total order on F making it an ordered field such that, in this ordering, every positive element of F is a square in F and… …   Wikipedia