Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

¬(T ∧ r ∧ ((r ∧ r) ∨ (¬r ∧ ¬r)))

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Path 1

path	[0, 0, 1, 0, 1, 3, 3]
steps	7
major rules	2
active labels	cnf eliminateimplequiv