Essay
determine whether the given proposition is a logical truth of PL or not. If it is a logical truth, provide a proof. If it is not a logical truth, provide a false valuation.
-[(D ⊃ E) ⊃ F] ⊃ [D ⊃ (E ⊃ F)]
Correct Answer:
Verified
Correct Answer:
Verified
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