Exercise logic.propositional.dnf
Description
Proposition to DNF
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
q || (T /\ r) || ~(~q || r)
⇒ logic.propositional.demorganorq || (T /\ r) || (~~q /\ ~r)
⇒ logic.propositional.notnotq || (T /\ r) || (q /\ ~r)
⇒ logic.propositional.truezeroandq || r || (q /\ ~r)