Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

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