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Proof step 53 from proof byte-law-righthift-not (previous step)

0 ≤ 1, i2b (bits2int(sublist(0, # fillsgn(32, int2bits(128)), mklist(false, i→n(bits2int(bitsand(uint2bits(1), int2bits(31))))) + fillsgn(32, int2bits(128))))) = i2b (bits2int (sublist(0, # fillsgn(32, int2bits(~128)), mklist(false, i→n(bits2int(bitsand(uint2bits(1), int2bits(31))))) + fillsgn(32, int2bits(~128))))) ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: ⊦ boolvar + boolvar0 = boolvar ' + boolvar0 ';% ⊦ uint2bits(1) = false + true;