Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

(¬(q → p) ∧ ¬F) ↔ ((¬¬r ↔ s) ∨ ¬s)

⇒ logic.propositional.notnot

(¬(q → p) ∧ ¬F) ↔ ((r ↔ s) ∨ ¬s)