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Definition 2025
existential_instantiation
existential instantiation
English
Noun
existential instantiation (plural existential instantiations)
- (logic) In predicate logic, an inference rule of the form ∃x P(x) ⊢ P(c), where c is a new symbol (not part of the original domain of discourse, but which can stand for an element of it (as in Skolemization)).