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