Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.idempor

(¬(q → ¬¬p) ↔ ((r ↔ s) ∨ ¬s)) ∧ T