Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

(p || q) /\ (((r /\ r) || (r /\ r)) <-> p)

⇒ logic.propositional.idempand

(p || q) /\ ((r || (r /\ r)) <-> p)

⇒ logic.propositional.absorpor

(p || q) /\ (r <-> p)