Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

(¬¬q ∧ ¬p) ↔ ((r ↔ s) ∨ ¬s)

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• onefirst
• allfirsts (1)
• allapplications
• derivation
• microsteps

Path 1

path	[0, 0, 0, 0, 1, 2, 2, 0, 1]
steps	9
major rules	2
active labels	dnf specialdemorgannot