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Proof step 18 from proof byte-short-neq (previous step)

cast(16, i) = s2i(i2s(j)) ⊦ cast(8, i) = cast(8, cast(16, i)), i2b(cast(8, i)) = i2b(j)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

seq: 0 < i, i ≤ i0 ⊦ cast(i, cast(i0, j)) = cast(i, j) subst: [j, i0, i] → [i, 16, 8] rotate: F spec: intops inst: name: cast-law-absorption

Additional information

Used terms: i, 16, 8