Exercise logic.propositional.dnf
Description
Proposition to DNF
Derivation
T /\ (~(q -> r) || ~~q || r)
⇒ logic.propositional.truezeroand~(q -> r) || ~~q || r
⇒ logic.propositional.defimpl~(~q || r) || ~~q || r
⇒ logic.propositional.demorganor(~~q /\ ~r) || ~~q || r
⇒ logic.propositional.absorpor~~q || r
⇒ logic.propositional.notnotq || r