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