Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

(¬¬q ∧ ¬p ∧ ¬(q → p)) ↔ ((r ↔ s) ∨ ¬s)

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Path 1

path	[0, 1, 2, 2, 0, 1]
steps	6
major rules	1
active labels	dnf specialdemorgannot