Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

¬(q → p) ↔ (((r ↔ s) ∨ ¬s) ∧ (((r ↔ s) ∧ T) ∨ ¬¬¬s))

⇒ logic.propositional.notnot

¬(q → p) ↔ (((r ↔ s) ∨ ¬s) ∧ (((r ↔ s) ∧ T) ∨ ¬s))