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Theorem num-subadd

⊦ (* i) - j + (* i0) = i - i0 - j

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: abs-le-succ, abs-succ, absls-05, minus, minus-01, negone,
Used by units in proved state: int-gcd, intnat,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas: sub-add, sub-add-06, sub-add-01, sub-eq, sub-sub,
Used spec theorems:
- Used simplifier rules:
  - int-basic2/add-c
  - int-basic2/add-a