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Proof step 54 from proof byte-law-righthift-not (previous step)

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

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

seq: ⊦ 0 ≤ i → int2bits(i) = uint2bits(i) subst: [i] → [31] rotate: F spec: int2bits inst: name: int2bits-pos

Additional information

Used terms: 31