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Proof step 58 from proof bitsand-cast-05 (previous step)

bits1 ≠ [] ∧ false ' + bits0 ≠ [], 1 + # bits0 = # bits1 ⊦ bits1 = [], sgn(bitsand(false ' + bits0, bits1)) = sgn(false ' + bitsand(false ' + bits0, bits1))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: ⊦ (bits + bits0) + bits1 = bits + bits0 + bits1;% ⊦ boolvar ' + bits ≠ [];