Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

¬(¬q ∨ p) ↔ (¬F ∧ ((r ↔ s) ∨ ¬s))

⇒ logic.propositional.notfalse

¬(¬q ∨ p) ↔ (T ∧ ((r ↔ s) ∨ ¬s))