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Theorem sub-def-any

⊦ mkDecimal(i, j) - mkDecimal(i0, j0) = mkDecimal(i * 10 ^ abs(j0) - i0 * 10 ^ abs(j), abs(j) + abs(j0))

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: less-def-any, ls-zero, sub-add, sub-same,
Used by units in proved state:
Proof exists?: Yes

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