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Step * of Lemma no_repeats-concat

∀[T:Type]. ∀[ll:T List List].
  (no_repeats(T;concat(ll))) supposing ((∀l∈ll.no_repeats(T;l)) and (∀l1,l2∈ll.  l_disjoint(T;l1;l2)))
BY
{ (Auto THEN BLemma `no_repeats-concat-iff` THEN Auto) }

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Latex:

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Latex:
\mforall{}[T:Type].  \mforall{}[ll:T  List  List].
    (no\_repeats(T;concat(ll)))  supposing 
          ((\mforall{}l\mmember{}ll.no\_repeats(T;l))  and 
          (\mforall{}l1,l2\mmember{}ll.    l\_disjoint(T;l1;l2)))


By

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Latex:
(Auto  THEN  BLemma  `no\_repeats-concat-iff`  THEN  Auto)

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