Exercise logic.propositional.dnf.unicode
Description
Proposition to DNF (unicode support)
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
(¬(¬q ∨ p) ∨ F) ↔ (¬s ∨ (r ↔ s))
⇒ logic.propositional.demorganor((¬¬q ∧ ¬p) ∨ F) ↔ (¬s ∨ (r ↔ s))
⇒ logic.propositional.falsezeroor(¬¬q ∧ ¬p) ↔ (¬s ∨ (r ↔ s))
⇒ logic.propositional.notnot(q ∧ ¬p) ↔ (¬s ∨ (r ↔ s))