Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

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