Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

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