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Theorem is-encoded-unique

⊦ is-encoded-pagesize(a, buf) → (is-encoded-pagesize(b, buf) ↔ a = b)

Type: A user defined theorem
Validity: The proof is valid.
Features: s, ls,
Comment:
Used by: is-encoded-not-garbage-pagesize,
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: is-encoded-pagesize,
Used spec theorems:
- Used simplifier rules:
  - encoding-fixed-size-nonempty/is-encoded-unique
  - eraseblock/isempty-empbuf