Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

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