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Proof step 4 from proof long-automatic-02 (previous step)

⊦ i2l(bits2int(lastn(64, int2bits(18446744073709551614)))) = i2l(~2)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 5:
⊦ 0 ≤ i → int2bits(i) = uint2bits(i)
Proof step 6:
0 ≤ 18446744073709551614 ⊦ i2l(bits2int(lastn(64, uint2bits(18446744073709551614)))) = i2l(~2)

Rule argument

spec: int2bits inst: name: int2bits-pos seq: ⊦ 0 ≤ i → int2bits(i) = uint2bits(i) subst: [i] → [18446744073709551614] flags: rewrite

Additional information

Used terms: 18446744073709551614