Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

¬(q → p) ↔ (((r ∨ r ∨ r) ↔ (T ∧ s)) ∨ (T ∧ ¬s ∧ T ∧ ¬s))