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