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Theorem appinf-one-get-zero

⊦ (⌜a '⌝ + ⌜nf⌝ ).f(0) = a

Type: A user defined theorem
Validity: The proof is valid.
Features: s, ls,
Comment:
Used by: appinf-one2-get-zero,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas: append-assoc, appinf-get-split,
Used spec theorems:
- Used simplifier rules:
  - list-del/one-03
  - list/len-02