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Theorem frag-rec

⊦ frag(IOAut(start, step, ext))(⌜s '⌝ + σ, ⌜a '⌝ + α) ↔ step(s, a, hd(σ)) ∧ frag(IOAut(start, step, ext))(σ, α)

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: finfrag-rec,
Used by units in proved state: project-right,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 7
Proof steps: 20
Used lemmas: frag,
Used spec theorems:
- stream/get-append-notls
Used simplifier rules: