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Using only the 12 basic intro/elim rules of Natural Deduction (you may not use logical equivalences), prove the following: Vxy[P(x,y) ^ Q(y)] xyz(x, y)
Using only the 12 basic intro/elim rules of Natural Deduction (you may not use logical equivalences), prove the following: Vxy[P(x,y) ^ Q(y)] xyz(x, y) Q(y) ^ Q(z)] Note: We assume that all variables are in the same domain.
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Problem xyPxy Qy xyzPxy Qy Qz 1 xyPxy Qy Premise 2 a Flag 3 yPay Qy 1 E 4 Pab Qb Assumption 5 Qb 4 E ...
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Income Tax Fundamentals 2013
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
31st Edition
1111972516, 978-1285586618, 1285586611, 978-1285613109, 978-1111972516
