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Proof step 720 from proof bitsand-cast (previous step)

false ' + true ' + bits ≠ [] ∧ bits1 ≠ [], # bits1 = # bitsand(bits1, false ' + true ' + bits), 2 + # bits = # bits1, # bits1 ≤ # bitsand(bits1, false ' + true ' + bits) ⊦ bits3 = [], mklist(false, # bits3) + bitsand(bits1, false ' + true ' + bits) = lastn(2 + # bits + # bits3, mklist(false, # bits3) + bitsand(bits1, false ' + true ' + bits)), bits1 = [], bits2 + mklist(false, # bits3) = [], bits3 + bits1 = [], bits3.first

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 721:
2 + # bits = # bits1, # bits1 = # bitsand(bits1, false ' + true ' + bits) ⊦ bits1 = [], bits3 + bits1 = [], bits2 + mklist(false, # bits3) = [], mklist(false, # bits3) + bitsand(bits1, false ' + true ' + bits) = lastn(2 + # bits + # bits3, mklist(false, # bits3) + bitsand(bits1, false ' + true ' + bits)), bits3 = [], bits3.first

Rule argument

Additional information

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