weak axiom
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Weak axiom of cost minimization — In economics, the weak axiom of cost minimization (WACM) provides a nonparametric test of cost minimization, which can be applied only when both input price and quantity data are available for individual firms. External links *… … Wikipedia
Axiom of countable choice — The axiom of countable choice or axiom of denumerable choice, denoted ACω, is an axiom of set theory, similar to the axiom of choice. It states that any countable collection of non empty sets must have a choice function. Spelled out, this means… … Wikipedia
Axiom of determinacy — The axiom of determinacy (abbreviated as AD) is a possible axiom for set theory introduced by Jan Mycielski and Hugo Steinhaus in 1962. It refers to certain two person games of length ω with perfect information. AD states that every such game in… … Wikipedia
Axiom of global choice — In class theories, the axiom of global choice is a stronger variant of the axiom of choice which applies to proper classes as well as sets. Statement The axiom can be expressed in various ways which are equivalent: Weak form: Every class of… … Wikipedia
Axiom of dependent choice — In mathematics, the axiom of dependent choices, denoted DC, is a weak form of the axiom of choice (AC) which is still sufficient to develop most of real analysis. Unlike full AC, DC is insufficient to prove (given ZF) that there is a… … Wikipedia
Weak equivalence — In mathematics, a weak equivalence is a notion from homotopy theory which in some sense identifies objects that have the same basic shape . This notion is formalized in the axiomatic definition of a closed model category.Formal definitionA closed … Wikipedia
Separation axiom — In topology and related fields of mathematics, there are several restrictions that one often makes on the kinds of topological spaces that one wishes to consider. Some of these restrictions are given by the separation axioms. These are sometimes… … Wikipedia
Second-order arithmetic — In mathematical logic, second order arithmetic is a collection of axiomatic systems that formalize the natural numbers and sets thereof. It is an alternative to axiomatic set theory as a foundation for much, but not all, of mathematics. The… … Wikipedia
Revealed preference — theory, pioneered by American economist Paul Samuelson, is a method by which it is possible to discern the best possible option on the basis of consumer behavior. Essentially, this means that the preferences of consumers can be revealed by their… … Wikipedia
Выявленные предпочтения — В теории потребителя подход выявленных предпочтений один из методов определения выбора потребителя в условиях определённости, предложенный в 1938 году американским экономистом Полом Самуэльсоном. Основан на том, что у агентов имеются… … Википедия
Warp — is a verb and noun pertaining to distortion and twisting, and to lines and ropes used in the contexts below.Warp may refer to:hips and aircraft*Wing warping, a manner of controlling the roll of an aeroplane *Warp drive, the faster than light… … Wikipedia