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Step * of Lemma decidable__fset-member

∀[T:Type]. ∀eq:EqDecider(T). ∀x:fset(T). ∀a:T.  Dec(a ∈ x)
BY
{ (Auto THEN RWO "assert-deq-fset-member<" 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[T:Type].  \mforall{}eq:EqDecider(T).  \mforall{}x:fset(T).  \mforall{}a:T.    Dec(a  \mmember{}  x)


By

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Latex:
(Auto  THEN  RWO  "assert-deq-fset-member<"  0  THEN  Auto)

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