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Theorem in-vl-append

⊦ ¬ lref ∈ q → (lref ∈ q + eq-entry(n, lref0) ' ↔ lref = lref0)

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 7
Used lemmas: queue-in-vl,
Used spec theorems:
- Used simplifier rules:
  - list/erasequeue-base/a
  - list/erasequeue-base/in-17
  - list/erasequeue-base/in-append
  - erasequeueentry/inj