Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

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