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Proof step 4 from proof sqrt-exact-square (previous step)

isSquare(dec0 * dec0), mkDecimal(0, 0) ≤ dec0 ⊦ mkDecimal(sqrt((dec0 * dec0).int), (dec0 * dec0).scale / 2) = dec0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: isSquare-square: ⊦ isSquare(dec * dec);%mult-c: ⊦ dec_i * dec_j = dec_j * dec_i; from specification decimal-simple-ops%mult-a: ⊦ dec0 * dec1 * dec2 = (dec0 * dec1) * dec2; from specification decimal-simple-ops