Exercise logic.propositional.dnf.unicode
Description
Proposition to DNF (unicode support)
Derivation
Final term is not finished
(¬(¬q ∨ p) ∨ ¬(¬q ∨ p)) ↔ ((r ↔ s) ∨ (¬(s ∨ s) ∧ ¬s ∧ ¬s ∧ ¬s))
⇒ logic.propositional.idempor(¬(¬q ∨ p) ∨ ¬(¬q ∨ p)) ↔ ((r ↔ s) ∨ (¬s ∧ ¬s ∧ ¬s ∧ ¬s))