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Theorem datsize-write-higher

⊦ m + n ≤ # buf ∧ n ≤ # buf0 ∧ ¬ m < datasize(buf) → ¬ datasize(copy(buf0, 0, buf, m, n)) < datasize(buf)

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 3
Used lemmas: datsize-write-higher-h, datasize,
Used spec theorems:
- Used simplifier rules:
  - nat/fle
  - nat-basic/f
  - nat/lels
  - array-copy/buffer/size-copy
  - nat/le-ls-simp
  - nat/ler