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Theorem path-last

⊦ path(r ' + x, h) → ((r ' + x).last ∈ h ↔ true)

Type: A user defined theorem
Validity: The proof is valid.
Features: ss, lss,
Comment:
Used by: path-prelast, reachable-addnew-rev,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 9
Used lemmas: path-cons, path-one,
Used spec theorems:
- Used simplifier rules:
  - list/reflist/app
  - list/reflist/a
  - list-last/reflist/last-one
  - list-last/reflist/l-02
  - list/reflist/c
  - list/reflist/e-01