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