Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

~~~~q || ~~p || (F /\ r)
logic.propositional.falsezeroand
~~~~q || ~~p || F
logic.propositional.falsezeroor
~~~~q || ~~p
logic.propositional.notnot
~~q || ~~p
logic.propositional.notnot
q || ~~p
logic.propositional.notnot
q || p