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