A quantifier binds a free variable in a first-order formula and specifies how its truth depends on elements of a first-order structure: universal quantification ∀ requires every element, while existential quantification ∃ requires at least one.
Ancestors (6)
Incoming links (54)
- Arithmetical hierarchy
- Bounded arithmetic sentence
- Bounded completeness of an arithmetic theory
- Bound variable
- Class term
- Domain of a first-order structure
- Eigenvariable condition
- Epsilon-delta definition of continuity
- Foundation in the cumulative hierarchy without ambient Foundation
- Free for substitution
- Hilbert-style first-order calculus
- Logical formula
- Negation normal form
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- Propositional substitution
- Quantified formula
- Quantifier
- Quantifier elimination for infinite underlying vector spaces
- Uniformly continuous function
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