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Step * of Lemma set-subtype

Set{i:l} ⊆r (T:Type × (T ⟶ Set{i:l}))
BY
{ (InstLemma `set-ext` [] THEN Auto) }

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Latex:

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Latex:
Set\{i:l\}  \msubseteq{}r  (T:Type  \mtimes{}  (T  {}\mrightarrow{}  Set\{i:l\}))


By

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Latex:
(InstLemma  `set-ext`  []  THEN  Auto)

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