Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished
(¬¬(q ∨ q ∨ q) ∧ ¬p) ↔ ((r ↔ s) ∨ ¬s)
logic.propositional.idempor
(¬¬(q ∨ q) ∧ ¬p) ↔ ((r ↔ s) ∨ ¬s)