Exercise logic.propositional.dnf
Description
Proposition to DNF
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
~(~((F /\ r) || (F /\ r) || q || ~~p) /\ T)
⇒ logic.propositional.truezeroand~~((F /\ r) || (F /\ r) || q || ~~p)
⇒ logic.propositional.idempor~~((F /\ r) || q || ~~p)
⇒ logic.propositional.falsezeroand~~(F || q || ~~p)
⇒ logic.propositional.falsezeroor~~(q || ~~p)
⇒ logic.propositional.notnot~~(q || p)
⇒ logic.propositional.demorganor~(~q /\ ~p)