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