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