quantifier

Etymology

quantify + -er

noun

  1. (grammar) A word, such as all or many, that expresses the quantity of a related noun.
  2. (logic) An operator, such as the universal quantifier (written as ∀) or the existential quantifier (∃), used in predicate calculus to indicate the degree that predicate is true for a specified set.
  3. (computing) A symbol or symbols in a regular expression indicating the number of characters to be matched.

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