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Proof step 994 from proof bitsand-cast (previous step)

# bits0 ≤ # bits1, bits0.first ⊦ bits1 = [], bits2 + bits1 = [], bits1 = lastn(# bits1, fillsgn(# bits1, bits2 + bitsand(bits1, bits0))), bits0 = [], true ∈ bits1

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 995:
⊦ ¬ boolvar ∈ bits ↔ mklist(¬ boolvar, # bits) = bits
Proof step 996:
# bits0 ≤ # bits1, bits0.first ⊦ bits1 = [], bits2 + bits1 = [], bits1 = lastn(# bits1, fillsgn(# bits1, bits2 + bitsand(bits1, bits0))), bits0 = [], mklist(¬ true, # bits1) ≠ bits1

Rule argument

seq: ⊦ ¬ boolvar ∈ bits ↔ mklist(¬ boolvar, # bits) = bits subst: [bits, boolvar] → [bits1, true] rotate: F spec: bitlista inst: name: mklist-intro

Additional information

Used terms: bits1, true