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Proof step 19 from proof test-div-01 (previous step)

⊦ mkDecimal(10000 / 3 / 10 ^ maxScale(3), 4 + maxScale(3)) = mkDecimal(3333, 4), mkDecimal(3, 0) | mkDecimal(1, 0)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: decimal inst: name: maxScale-base seq: ⊦ i % 10 ≠ 0 ∧ i ≠ 0 → maxScale(i) = 0 subst: [i] → [3] flags: rewrite

Additional information

Used simplifier rules: add-a: ⊦ i + j + i0 = (i + j) + i0; from specification int-basic2%add-c: ⊦ i + j = j + i; from specification int-basic2%eq-same: ⊦ mkDecimal(i, j) = mkDecimal(i0, j) ↔ i = i0; from specification decimal Used terms: 3