Exercise logic.propositional.dnf.unicode
Description
Proposition to DNF (unicode support)
Derivation
Final term is not finished
¬(q → p) ↔ (((¬¬r ∨ F) ↔ s) ∨ ¬s)
⇒ logic.propositional.falsezeroor¬(q → p) ↔ ((¬¬r ↔ s) ∨ ¬s)
⇒ logic.propositional.notnot¬(q → p) ↔ ((r ↔ s) ∨ ¬s)