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Proof step 2 from proof ls-add-02 (previous step)

dec_j = mkDecimal(i, i0) ⊦ dec_i + dec_j < dec_j ↔ dec_i < mkDecimal(0, 0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: ls-add: ⊦ dec + mkDecimal(i, j) < mkDecimal(i0, j) ↔ dec < mkDecimal(i0 - i, j);%add-a: ⊦ dec0 + dec1 + dec2 = (dec0 + dec1) + dec2;%add-c: ⊦ dec_i + dec_j = dec_j + dec_i;%sub-sub-03: ⊦ i - i = 0; from specification int-abs