Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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