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Proof step 10 from proof mkDecimal-negated (previous step)

⊦ mkDecimal(i, j).int + mkDecimal(~ mkDecimal(i, j).int, mkDecimal(i, j).scale).int = 0

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 11:
⊦ mkDecimal(~ i, j).int = ~ mkDecimal(i, j).int
Proof step 12:
⊦ mkDecimal(i, j).int + ~ mkDecimal(mkDecimal(i, j).int, mkDecimal(i, j).scale).int = 0

Rule argument

spec: inst: name: getint-neg-01 seq: ⊦ mkDecimal(~ i, j).int = ~ mkDecimal(i, j).int subst: [j, i] → [mkDecimal(i, j).scale, mkDecimal(i, j).int] flags: rewrite, current

Additional information

Used terms: mkDecimal(i, j).scale, mkDecimal(i, j).int