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Proof step 22 from proof bitsand-cast-05 (previous step)

# bits1 = n + 1 + # bits0, # bits0 < # bits1, 1 + # bits0 < # bits1 ⊦ sgn(bitsand(mklist(true, n) + true ' + bits0, false ' + bits1)) = sgn(bitsand(true ' + bits0, false ' + bits1)), bits1 = [], n = 0

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 23:
⊦ ¬ false ∈ bits → bitsand(bits + true ' + bits0, false ' + bits1) = bitsand(true ' + bits0, false ' + bits1)

Rule argument

name: bitsand-app-ones rotate: F subst: [bits1, bits0, bits] → [bits1, bits0, mklist(true, n)]

Additional information

Used simplifier rules: ⊦ ¬ false ∈ mklist(true, n); Used terms: bits1, bits0, mklist(true, n)