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p ↔ q is logically equivalent to ________

Posted: Thu Jul 14, 2022 8:57 am
by answerhappygod
a) (p → q) → (q → p)
b) (p → q) ∨ (q → p)
c) (p → q) ∧ (q → p)
d) (p ∧ q) → (q ∧ p)