Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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