Cruise's Crop Circles

# Cruise's Crop Circles - 1 CRUISE'S CROP CIRCLES &quot;A...

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1 CRUISE’S CROP CIRCLES “A Proof from a Small Silver Saucer” “Cruise’s Crop Circles” is two proofs that can be completed in order to achieve a 100 on Test #2. If you can complete the following problems before Test #2 and can explain them to me during my office hours, then you will get an automatic “A” for the test on propositional logic. The problem must be submitted and explained before the day of the test (Thursday, October 23). Get out your tarot cards, gargoyles, and quija boards! These are a dark-sided proofs! Do the following two proofs: (1) First, complete the following proof using ONLY the 18 rules of inference (Do NOT use conditional and indirect proof). 1. ( (R (D R)) E) 2. (B (C P)) 3. (A (M P)) 4. ( ( P F) ( A B)) / Q ((P ~X) (V E)) (2) Second, complete this similar proof using only conditional and indirect proof with the first 8 rules of implication. Do NOT use the rules of replacement. Note: almost all of the proof

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## This note was uploaded on 02/14/2011 for the course PHIL 110 taught by Professor ? during the Fall '06 term at South Carolina.

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Cruise's Crop Circles - 1 CRUISE'S CROP CIRCLES &quot;A...

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