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Proof step 2 from proof getint-neg-01 (previous step)

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

User applied rule insert lemma

And obtained the following new goals

Proof step 3:
⊦ ~ mkDecimal(i, j).int = mkDecimal(~ i, j).int

Rule argument

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

Additional information

Used simplifier rules: negeq: ⊦ ~ i = j ↔ i + j = 0; from specification int-abs Used terms: i, j