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Step * of Lemma cbv-concat_wf

∀[T:Type]. ∀[ll:T List List].  (cbv-concat(ll) ∈ T List)
BY
{ Auto
THEN RWO "cbv-concat-sq" 0
THEN Auto }

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Latex:

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Latex:
\mforall{}[T:Type].  \mforall{}[ll:T  List  List].    (cbv-concat(ll)  \mmember{}  T  List)


By

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Latex:
Auto
THEN  RWO  "cbv-concat-sq"  0
THEN  Auto

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