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Proof step 5 from proof square-isSquare (previous step)

⊦ isSquare(mkDecimal(i * i, abs(i0) + abs(i0)).int)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 6:
⊦ isSquare(mkDecimal(i * i, 2 * abs(i0)).int)

Rule argument

Additional information

Used simplifier rules: add-c: ⊦ i + j = j + i; from specification int-basic2%add-a: ⊦ i + j + i0 = (i + j) + i0; from specification int-basic2%add-mult-two: ⊦ i + i = 2 * i; from specification int-mult