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