Multiple Choice
determine whether the given proposition is a logical truth or not. If it is not a logical truth, select a false valuation.
-[(D ⊃ E) ⊃ F] ⊃ [D ⊃ (E ⊃ F) ]
A) Logical truth
B) Not a logical truth. False valuation when D, E and F are true
C) Not a logical truth. False valuation when D and E are true and F is false
D) Not a logical truth. False valuation when E and F are true and D is false
E) Not a logical truth. False valuation when E is true and D and F are false
Correct Answer:
Verified
Correct Answer:
Verified
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