Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

~~~~(q || ~~~r) /\ ~~(~q /\ (q || p) /\ ~q)

⇒ logic.propositional.notnot

~~(q || ~~~r) /\ ~~(~q /\ (q || p) /\ ~q)

⇒ logic.propositional.notnot

~~(q || ~r) /\ ~~(~q /\ (q || p) /\ ~q)

⇒ logic.propositional.demorganor

~(~q /\ ~~r) /\ ~~(~q /\ (q || p) /\ ~q)

⇒ logic.propositional.notnot

~(~q /\ r) /\ ~~(~q /\ (q || p) /\ ~q)