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Theorem abs-failed-size0

⊦ abs-failed(buf) → NODE_HEADER_SIZE ≤ # buf

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas: buf-size-zero, abs-failed,
Used spec theorems:
- Used simplifier rules:
  - align/is-aligned-ls-eq-zero
  - align/alignup-same
  - nat-basic/c
  - nat-basic/a
  - nat-basic/l-02
  - abs-node/lfw-is-encoded-nodeheader-size
  - nat-basic/lf-01
  - nat-basic/f
  - nat/le-def
  - encoding-fixed-size-nonempty/encoding-node-header/is-encoded-not-garbage-nonempty
  - array-splice/buffer/append-a
  - array-splice/buffer/append-len
  - nat-mult/mult-c
  - nat-mult/mult-a
  - nat-mult/two-zero-01
  - align/is-aligned-le-eq-zero
  - node-header-size/nodeheader-notzero
  - nat/ge