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