Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished
~~((q || p) /\ (~q || ~q) /\ (q || ~r))
logic.propositional.idempor
~~((q || p) /\ ~q /\ (q || ~r))
logic.propositional.andoveror
~~((q || p) /\ ((~q /\ q) || (~q /\ ~r)))
logic.propositional.compland
~~((q || p) /\ (F || (~q /\ ~r)))
logic.propositional.falsezeroor
~~((q || p) /\ ~q /\ ~r)
logic.propositional.andoveror
~~((q /\ ~q /\ ~r) || (p /\ ~q /\ ~r))
logic.propositional.compland
~~((F /\ ~r) || (p /\ ~q /\ ~r))
logic.propositional.falsezeroand
~~(F || (p /\ ~q /\ ~r))
logic.propositional.falsezeroor
~~(p /\ ~q /\ ~r)