The existential quantifier in predicate logic indicates that:
2015
The existential quantifier in predicate logic indicates that:
- A.
Statement is true for all
- B.
Statement is true for at least one
- C.
Statement is false for at least one
- D.
Statement is false for all
- E.
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Correct answer: B
The existential quantifier ∃ means there exists at least one element in the domain for which the statement is true.
Example: ∃x P(x) P(x)∃xP(x) ⇒ “There is at least one xxx such that P(x) is true.”