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