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