Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

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