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 ∨ s))) ∧ (¬(T ∧ (q → p)) ↔ ((r ↔ s) ∨ ¬s))
⇒ logic.propositional.idempor(¬(T ∧ (q → p)) ↔ ((r ↔ s) ∨ ¬s)) ∧ (¬(T ∧ (q → p)) ↔ ((r ↔ s) ∨ ¬s))