Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.idempor

¬(q → p) ↔ ¬¬((r ↔ s) ∨ ¬(T ∧ s))