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