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Proof step 19 from proof sgn-last-diff (previous step)

⊦ (¬ boolvar)' = sgn((¬ boolvar)' + bits0), boolvar ∈ bits0

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

name: sgn-in rotate: F subst: [bits, boolvar] → [bits0, ¬ boolvar]

Additional information

Used terms: bits0, ¬ boolvar