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Theorem reachable-addnewtonull-rev

⊦ reachable(r, r1, h[r2 := ce]) ∧ ce.nxt = null ∧ r1 ∈ h ∧ ¬ r2 ∈ h → (reachable(r, r1, h) ↔ true)

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 5
Proof steps: 12
Used lemmas: null-not-start-of-path, path-cons, path-one, reachable-def,
Used spec theorems:
- store/At-other
Used simplifier rules: