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Theorem subarray-append-shift-left

⊦ n + m = # ar0 + # ar1 ∧ n ≤ # ar0 → subarray(ar0 + ar1, n, m) = subarray(ar0, n, # ar0 - n) + ar1

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by:
Used by units in proved state:
Proof exists?: Yes

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Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 9
Used lemmas: append-at, append-a, append-len,
Used spec theorems:
- array/Extension
Used simplifier rules: