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