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