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