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Do the following proofs deductively. Justify each step in your proof with a law or inference rule. a) If P Q, R Q, and P
Do the following proofs deductively. Justify each step in your proof with a law or inference rule.
a) If P Q, R Q, and P then prove R.
b) If P (Q R) and R Q then prove P.
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Database Concepts
Authors: David Kroenke
4th Edition
0136086535, 9780136086536
