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Find the answer of discrete mathematics
Question 3

((p∨q)→r)→p

((p∨q)→r)∨p becomes conjunctive disjunction.

(? (p∨q)∨r)∨p becomes conjunctive disjunction.

p∨((p∨q)∧? De Morgan's law

p∨((p∧? r)∩(q∧? R)) distribution law

p∨(p∧? r)∩(q∧? R) association law

p∨(q∧? R) joint desorption absorption rate

(p∧(? q∨q)∧(? r∨r))∨((? p∨p)∧q∧? R) supplement

((p∧? q∧(? r∨r))∨(p∧q∧(? r∨r)))∨((? p∨p)∧q∧? R) distribution method

(p∧? q∧(? r∨r))∨(p∧q∧(? r∨r))∨((? p∨p)∧q∧? R) association law

((p∧? q∧? r)∩(p∧? q∧r))∨(p∧q∧(? r∨r))∨((? p∨p)∧q∧? R) distribution method

(p∧? q∧? r)∩(p∧? q∧r)∨(p∧q∧(? r∨r))∨((? p∨p)∧q∧? R) association law

(p∧? q∧? r)∩(p∧? q∧r)∨((p∧q∧? r)∨(p∧q∧r))∨((? p∨p)∧q∧? R) distribution method

(p∧? q∧? r)∩(p∧? q∧r)∨(p∧q∧? r)∨(p∧q∧r)∨((? p∨p)∧q∧? R) association law

(p∧? q∧? r)∩(p∧? q∧r)∨(p∧q∧? r)∨(p∧q∧r)∨((? p∧q∧? r)∩(p∧q∧? R)) distribution law

(p∧? q∧? r)∩(p∧? q∧r)∨(p∧q∧? r)∨(p∧q∧r)∨(? p∧q∧? r)∩(p∧q∧? R) association law

(p∧? q∧? r)∩(p∧? q∧r)∨(p∧q∧r)∨(? p∧q∧? r)∩(p∧q∧? R) idempotent law

Get the principal disjunctive normal form