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)) ∧ (¬(T ∧ (¬q ∨ p)) ↔ ((¬¬r ↔ s) ∨ ¬s))
⇒ logic.propositional.notnot(¬(¬q ∨ p) ↔ ((r ↔ s) ∨ ¬s)) ∧ (¬(T ∧ (¬q ∨ p)) ↔ ((r ↔ s) ∨ ¬s))