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