Mathematical Proof/Appendix/Answer Key/Mathematical Proof/Introduction/Logical Reasoning

1.1, Logical Reasoning.


 * 1) Truth tables

2. Negated statements
 * 1) $$\lnot P \lor \lnot Q$$
 * 2) $$(\lnot P \land \lnot Q) \lor (\lnot R\lor \lnot S)$$
 * 3) $$(\lnot P \lor Q)\land (R\land \lnot S)$$