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