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