Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

(q /\ (q || p) /\ ~q) || (~r /\ (q || p) /\ ~q)
logic.propositional.absorpand
(q /\ ~q) || (~r /\ (q || p) /\ ~q)
logic.propositional.andoveror
(q /\ ~q) || (~r /\ ((q /\ ~q) || (p /\ ~q)))
logic.propositional.compland
F || (~r /\ ((q /\ ~q) || (p /\ ~q)))
logic.propositional.compland
F || (~r /\ (F || (p /\ ~q)))
logic.propositional.falsezeroor
~r /\ (F || (p /\ ~q))
logic.propositional.falsezeroor
~r /\ p /\ ~q