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