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Step * of Lemma es-filter-image_wf

∀[Info,A,B:Type]. ∀[f:A ─→ bag(B)]. ∀[X:EClass(A)].  (f[X] ∈ EClass(B))
BY
{ (ProveWfLemma THEN EAuto 1) }

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Latex:


\mforall{}[Info,A,B:Type].  \mforall{}[f:A  {}\mrightarrow{}  bag(B)].  \mforall{}[X:EClass(A)].    (f[X]  \mmember{}  EClass(B))


By

(ProveWfLemma  THEN  EAuto  1)

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