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Theorem finfrag-pis-init

⊦ frag*(IOAut(Π(lstart, rstart), Π(lstep, rstep, lren, rren, lext, rext), Π(lext, rext, lren, rren)))(psl, pal) → πrs(lstep, rstep, lren, rren, psl, pal) ≠ [] ∧ πrs(lstep, rstep, lren, rren, psl, pal).head = psl.head._2

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: finfrag-init, finfrag-pis-nonempty, proj-exec-fin,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 14
Proof steps: 30
Used lemmas: projstate-rec-addboth, projstate-rec-addR, projstate-rec-skipL, projstate-base,
Used spec theorems:
Used simplifier rules: