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Unformatted text preview: A (B & C),D (B A),C D A C This is problem I.4 on p . 66 of the text. Forbes describes a short method solution to this problem on p . 363 of the text. 3 Problem #3 Determine whether the following statement is correct, using any legitimate truthtable technique. A (B C),E (B & A),C E C A This is example D on page 64 of the text. Forbes gives a detailed short method solution there. 1 Solution to Problem #1 1 (1) (A & B) Premise 2 (2) (A & B) Premise 3 (3) A Assumption 4 (4) B Assumption 3,4 (5) A & B 3,4 &I 2,3,4 (6) f 2,5 E 2,3 (7) B 4,6 I 2,3 (8) B 7 DN 2,3 (9) A & B 3,8 &I 1,2,3 (10) f 1,9 E 1,2 (11) A 3,10 I F 2...
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 Spring '08
 FITELSON
 Philosophy

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