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词汇 universal quantifier
释义

Definition of universal quantifier in English:

universal quantifier

noun
Logic
  • A formal expression used in asserting that a stated general proposition is true of all the members of the delineated universe or class.

    〔逻〕全称量词

    Example sentencesExamples
    • These variables can be bound by standard existential and universal quantifiers (and not by constructibility quantifiers).
    • If, for example, we were to include among the extra-logical signs the implication sign, or the universal quantifier, then our definition of the concept of consequence would lead to results which obviously contradict ordinary usage.
    • Thus numberless descriptions are in effect universal quantifiers.
    • In systems of quantified modal logic, the modal operators are used in combination with the familiar existential and universal quantifiers (‘E’ and ‘A’ respectively) of ordinary, non-modal quantifier logic.
    • In formal mathematical logic, one makes frequent use of the existential and universal quantifiers.

Definition of universal quantifier in US English:

universal quantifier

noun
Logic
  • A formal expression used in asserting that a stated general proposition is true of all the members of the delineated universe or class.

    〔逻〕全称量词

    Example sentencesExamples
    • In systems of quantified modal logic, the modal operators are used in combination with the familiar existential and universal quantifiers (‘E’ and ‘A’ respectively) of ordinary, non-modal quantifier logic.
    • These variables can be bound by standard existential and universal quantifiers (and not by constructibility quantifiers).
    • Thus numberless descriptions are in effect universal quantifiers.
    • In formal mathematical logic, one makes frequent use of the existential and universal quantifiers.
    • If, for example, we were to include among the extra-logical signs the implication sign, or the universal quantifier, then our definition of the concept of consequence would lead to results which obviously contradict ordinary usage.
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