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Proof step 1 from proof ls-add-02 (conclusion)

⊦ dec_i + dec_j < dec_j ↔ dec_i < mkDecimal(0, 0)

User applied rule constructor cut

And obtained the following new goals

Proof step 2:
dec_j = mkDecimal(i, i0) ⊦ dec_i + dec_j < dec_j ↔ dec_i < mkDecimal(0, 0)

Rule argument

var: dec_j

Additional information

Used simplifier rules: decimal generated by mkDecimal;;