Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

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