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