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Discrete mathematical problem solving
Question (3)

(p? Q)

((p→q)∧(q→p)) becomes conjunctive disjunction.

((? p∨q)∧(? Q∨p)) becomes conjunctive disjunction.

(? p∨q)∨? (p∨? Q) de Morgan's law

(p∧? q)∨(? P∧q) De Morgan's Law

(p∧(? p∨? q))∨(((? p∨? Q)∧q) absorption rate is used in turn.

(p∨q)∧(? p∨? Q) distribution rate (? p∨? Q) as a whole

(p∨q)∧? (p∧q)

Question 4

(p∧? q)∨(? p∧q)

(p∧(? p∨? q))∨(((? p∨? Q)∧q) absorption rate is used in turn.

(p∨q)∧(? p∨? Q) distribution rate (? p∨? Q) as a whole

(p∨q)∧? (p∧q)