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