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Theorem finfrag-rec-end

⊦ frag*(IOAut(start, step, ext))(sl + s ', al + a ') ↔ step(sl.last, a, s) ∧ frag*(IOAut(start, step, ext))(sl, al)

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by:
Used by units in proved state: IOrefine-conds-imply-IOrefine, IOrefine-conds, IObackward-INV,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 4
Used lemmas: fragstar-def, frag-rec-end,
Used spec theorems:
- Used simplifier rules:
  - stream/append-finfin
  - list/a