Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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

⇒ logic.propositional.truezeroand

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