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Step * 1 of Lemma loopset-transitive


1. x : coSet{i:l}
2. seteq(x;loopset())
⊢ (x ⊆ loopset())
BY
{ (RWO "-1" 0 THEN EAuto 1) }

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Latex:

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Latex:

1.  x  :  coSet\{i:l\}
2.  seteq(x;loopset())
\mvdash{}  (x  \msubseteq{}  loopset())


By

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Latex:
(RWO  "-1"  0  THEN  EAuto  1)

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