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Proof step 2 from proof bits2bits-invert (previous step)

⊦ bits = [], bits2int(bitsinvert(sgn(bits))) = bits2int(bitsinvert(bits))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ bitsinvert(sgn(bits)) = sgn(bitsinvert(bits))

Rule argument

seq: ⊦ bitsinvert(sgn(bits)) = sgn(bitsinvert(bits)) subst: [bits] → [bits] rotate: F spec: bitopsaux inst: name: inv-sgn

Additional information

Used simplifier rules: bits2int-sgn: ⊦ bits2int(sgn(bits)) = bits2int(bits); Used terms: bits