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