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Proof step 17 from proof mod-mult-add (previous step)

0 < j, i0 < j, i0 ≤ 0, 0 < j, ∀ i1, j, i. i→n(i1) < i→n(i0) → 0 < j ∧ i1 ≤ 0 ∧ i1 < j → (i + i1 * j) |%| j = i |%| j ⊦ ((i + i0 * j) + j) |%| j = i |%| j

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 18:
i0 < j, i0 ≤ 0, 0 < j, ∀ i1, j, i. i→n(i1) < i→n(i0) → 0 < j ∧ i1 ≤ 0 ∧ i1 < j → (i + i1 * j) |%| j = i |%| j ⊦ (i + i0 * j) |%| j = i |%| j

Rule argument

Additional information

Used simplifier rules: mod-plus: ⊦ 0 < j → (i + j) |%| j = i |%| j;%add-c: ⊦ i + j = j + i; from specification int-basic2%add-a: ⊦ i + j + i0 = (i + j) + i0; from specification int-basic2