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Theorem path-butlast

⊦ path(r ' + x + r0 ', H) → (¬ path(r ' + x, H) ↔ false)

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: linearity, path-prelast, rem-stays-reachable-aux1, rem-stays-reachable-aux2,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 1
Used lemmas: path-prefix,
Used spec theorems:
- Used simplifier rules:
  - list/reflist/a