For each of the following arguments, it is possible to provide a formal proof of validity by

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For each of the following arguments, it is possible to provide a formal proof of validity by validly inferring just three statements. Writing these out, carefully and accurately, will strengthen your command of the rules of inference, a needed preparation for the construction of proofs that are more extended and more complex.


(P1): (H ⊃ 1) ⋅ (H ⊃ J)
(P2): H ⋅ (I ꓦ J)
∴ I ꓦ J

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Introduction To Logic

ISBN: 9781138500860

15th Edition

Authors: Irving M. Copi, Carl Cohen, Victor Rodych

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