Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

(¬(r ↔ r) ∨ ¬r) ∧ ¬((r ↔ r) ∧ r) ∧ T

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Path 1

path	[0, 1, 4, 3]
steps	4
major rules	1
active labels	cnf demorgan