Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

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