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Theorem inv-get

# xs < h, # xs = xs_len, # ys = 0 ∨ # ys = h ⊦ ⟪caterpillar_get#(h, xs, ys; ; x)⟫ true

Type: A proof obligation
Validity: The proof is valid.
Features:
Comment:
Used by:
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 4
Used lemmas: get,
Used spec theorems:
- Used simplifier rules:
  - nat-basic/f
  - list-data/l