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