Question: Use truth tables to prove the validity or invalidity of each of the argument forms in Section 8.5, Group B, pp. 2889. (P 1 ):

Use truth tables to prove the validity or invalidity of each of the argument forms in Section 8.5, Group B, pp. 288–9.


(P1): (I ꓦ J) ⊃ (I · J)
(P2):~ (I ꓦ J)
∴~(I ⋅ J )

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