Use either indirect proof or conditional proof (or both) and the eighteen rules of inference to derive

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Use either indirect proof or conditional proof (or both) and the eighteen rules of inference to derive the conclusions of the following symbolized arguments. Having done so, attempt to derive the conclusions without using indirect proof or conditional proof.

1. S (TV~U) 2. UD (~TvR) 3. (S.U) ~R 1~SV~U

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A Concise Introduction to Logic

ISBN: 978-1305958098

13th edition

Authors: Patrick J. Hurley, Lori Watson

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