Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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