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)) ∧ r)
⇒ logic.propositional.absorpand¬((r ∨ (¬r ∧ ¬r)) ∧ r)
⇒ logic.propositional.idempand¬((r ∨ ¬r) ∧ r)
⇒ logic.propositional.complor¬(T ∧ r)