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Step * of Lemma fset-list-union_wf

∀[T:Type]. ∀[eq:EqDecider(T)]. ∀[ss:fset(T) List].  (fset-list-union(eq;ss) ∈ fset(T))
BY
{ (Unfold `fset-list-union` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[T:Type].  \mforall{}[eq:EqDecider(T)].  \mforall{}[ss:fset(T)  List].    (fset-list-union(eq;ss)  \mmember{}  fset(T))


By

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Latex:
(Unfold  `fset-list-union`  0  THEN  Auto)

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