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Step * of Lemma hdf-compose0_wf

∀[A,B,C:Type]. ∀[f:B ⟶ bag(C)]. ∀[X:hdataflow(A;B)].  hdf-compose0(f;X) ∈ hdataflow(A;C) supposing valueall-type(C)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[A,B,C:Type].  \mforall{}[f:B  {}\mrightarrow{}  bag(C)].  \mforall{}[X:hdataflow(A;B)].
    hdf-compose0(f;X)  \mmember{}  hdataflow(A;C)  supposing  valueall-type(C)


By

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Latex:
ProveWfLemma

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