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