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Step * of Lemma es-interface-filter_wf

∀[Info,A:Type]. ∀[X:EClass(A)]. ∀[P:A ─→ 𝔹].  (X|a.P[a] ∈ EClass({a:A| ↑P[a]} ))
BY
{ (Auto THEN RepUR ``es-interface-filter eclass eclass-compose1`` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[Info,A:Type].  \mforall{}[X:EClass(A)].  \mforall{}[P:A  {}\mrightarrow{}  \mBbbB{}].    (X|a.P[a]  \mmember{}  EClass(\{a:A|  \muparrow{}P[a]\}  ))


By

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Latex:
(Auto  THEN  RepUR  ``es-interface-filter  eclass  eclass-compose1``  0  THEN  Auto)

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