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Given the Statements: a ≡ (B ∨C) / B ⊃

Question 213

Multiple Choice

Given the statements: A ≡ (B ∨C) / B ⊃ D / D ⊃ E / E ⊃ ∼ B / A ≡ ∼ C.
These statements are:

A) Valid.
B) Tautologous.
C) Consistent.
D) Contradictory.
E) Inconsistent.

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