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Theorem mkDecimal-rec

⊦ i % 10 = 0 ∧ j ≠ 0 → mkDecimal(i, j) = mkDecimal(i / 10, abs(j) - 1)

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: dec2int-def-any, eq-same, equality-any, getint-neg-02, mkDecimal-enlarge, scale-negate, test-inc-01,
Used by units in proved state: decimal-complex-ops, decimal-simple-ops,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 5
Used lemmas: scale-rec, scale-zero, intvalue-zero, intvalue-rec, Equality,
Used spec theorems:
- Used simplifier rules: