Exercise logic.propositional.cnf.unicode
Description
Proposition to CNF (unicode support)
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
¬(r ↔ r) ∨ ¬((T ∨ F) ∧ (T ∨ F)) ∨ ¬r
⇒ logic.propositional.falsezeroor¬(r ↔ r) ∨ ¬(T ∧ (T ∨ F)) ∨ ¬r
⇒ logic.propositional.absorpand¬(r ↔ r) ∨ ¬T ∨ ¬r