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