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Logical equivalence - SS2 Mathematics Lesson Note

A situation of logical equivalence arises when the truth values of two compound statements are the same. For instance, an implicative statement and a contradiction are logical equivalents. So is a converse and inverse statement.

 ImplicationConverseInverseContrapositive
pqpqpqqppqq⇒∼p
TTFFTTTT
TFFTFTTF
FTTFTFFT
FFTTTTTT
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