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)
⇒ logic.propositional.demorganor(¬¬q ∧ ¬p) ↔ (¬¬(r ↔ s) ∨ ¬s)
⇒ logic.propositional.notnot(q ∧ ¬p) ↔ (¬¬(r ↔ s) ∨ ¬s)
Description
Proposition to DNF (unicode support)