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Proof step 5 from proof short-mult-65536 (previous step)

⊦ i2s(cast(16, i * 2 ^ 16 + j)) = i2s(j)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 6:
⊦ 0 < i → cast(i, j * 2 ^ i + j0) = cast(i, j0)
Proof step 7:
0 < 16 ⊦ i2s(cast(16, j)) = i2s(j)

Rule argument

seq: ⊦ 0 < i → cast(i, j * 2 ^ i + j0) = cast(i, j0) subst: [j0, j, i] → [j, i, 16] rotate: F spec: intops inst: name: cast-mult-add

Additional information

Used terms: j, i, 16