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Theorem null-not-reachable

⊦ ¬ reachable(r, null, H)

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 8
Used lemmas: path-cons, path-one, reachable-def, reach-alloc,
Used spec theorems:
- Used simplifier rules:
  - list-last/reflist/l-02
  - list-last/reflist/l
  - list/reflist/app
  - list/reflist/a
  - list/reflist/e-01
  - list/reflist/c