Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

(T ∧ ¬(q → p)) ↔ ((¬¬r ↔ s) ∨ ¬s)

⇒ logic.propositional.defimpl

(T ∧ ¬(¬q ∨ p)) ↔ ((¬¬r ↔ s) ∨ ¬s)