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Step * of Lemma eclass-compose2_wf

∀[Info,A,B,C:Type]. ∀[f:bag(A) ⟶ bag(B) ⟶ bag(C)]. ∀[X:EClass(A)]. ∀[Y:EClass(B)].
  (eclass-compose2(f;X;Y) ∈ EClass(C))
BY
{ (Unfold `eclass` 0 THEN ProveWfLemma) }

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Latex:

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Latex:
\mforall{}[Info,A,B,C:Type].  \mforall{}[f:bag(A)  {}\mrightarrow{}  bag(B)  {}\mrightarrow{}  bag(C)].  \mforall{}[X:EClass(A)].  \mforall{}[Y:EClass(B)].
    (eclass-compose2(f;X;Y)  \mmember{}  EClass(C))


By

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Latex:
(Unfold  `eclass`  0  THEN  ProveWfLemma)

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