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Step * of Lemma item_mk_set_lemma

∀x,f,T:Top.  (set-item(f"(T);x) ~ f x)
BY
{ (RepUR ``set-item mk-set Wsup`` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}x,f,T:Top.    (set-item(f"(T);x)  \msim{}  f  x)


By

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Latex:
(RepUR  ``set-item  mk-set  Wsup``  0  THEN  Auto)

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