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Theorem sub-zerorec-01

n < # x ⊦ sublist(0, n + 1, x) = x.first + sublist(0, n, x.rest)

Type: A user defined theorem
Validity: The proof is valid.
Features: localsimp,
Comment:
Used by: sublist-lenrec-01,
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: firstN-rec, restN-zero, sublist-def,
Used spec theorems:
- Used simplifier rules:
  - list/a
  - list/app-08
  - nat-basic2/c
  - nat-basic2/a
  - list/c