Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

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