Determine whether each of the following sentences are satisfactory, contradictory or valid
(i) (P Λ Q) V ~ (P Λ Q)
(ii) (P → Q) → ~ P
(i) (P Λ Q) V ~ (P Λ Q)
The given sentence is a tautology, which means it ______ __________ ________ _____ _____.
_________ ___ __________ __________ ______ __________ ____ __________.
___ _______ ________ ___ ___ _________ __________ _____ _______.
___ ___ ___ _____ _____ _________ _______ _________ _______ ____ ________.
__________ ___ _________ ________ ________ _________ _____ ___ ______.
______ _________ ________ _____ ____ ____ ________ _________ _________ ________.
____ __________ _____ ____ ________ _________ __________ ______ ______ ____ _________ ______.
______ _____ ______ ________ ____ ______ _____ _____ ________ _______ _______ _____.
________ _________ ______ ________ ___ ___.
_______ _______ ________ ________ ___ _________ ______.
___ ____ __________ __________ _________ _________.
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