Given the statement: (K ≡ ∼ S) • ∼ (S ⊃ ∼ K)
This statement is:
A) Self-contradictory.
B) Contingent.
C) Inconsistent.
D) Valid.
E) Tautologous.

Question

Quizplus · Accepted Answer

The statement is self-contradictory because it contains a contradiction within itself. The first part (K ≡ ∼ S) implies that K and S have opposite truth values, while the second part ∼ (S ⊃ ∼ K) implies that S and K cannot have opposite truth values, leading to a contradiction.

Given the Statement: (K ≡ ∼ S) • ∼ (S