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