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Determine Whether the Following Symbolized Argument Is Valid or Invalid →\rarr

Question 85

Short Answer

Determine whether the following symbolized argument is valid or invalid.If invalid,provide a counterexample;if valid,construct a deduction.
P v (Q & K)
(P v Q) →\rarr [(L →\rarr ~X)& (~X →\rarr L)]
(L →\rarr ~X) →\rarr (X & ~Y)
(Y →\rarr Z)& (Z →\rarr M)
(Q →\rarr K) →\rarr Z/ ∴\therefore Z

Correct Answer:

verifed

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Invalid.
P = T
Q = T...

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