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Step * of Lemma id-graph-edge_wf

∀[S:Id List]. ∀[G:Graph(S)]. ∀[i:{i:Id| (i ∈ S)} ]. ∀[j:Id].  ((i⟶j)∈G ∈ ℙ)
BY
{ (Unfold `id-graph-edge` 0 THEN Auto THEN Fold `id-graph` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[S:Id  List].  \mforall{}[G:Graph(S)].  \mforall{}[i:\{i:Id|  (i  \mmember{}  S)\}  ].  \mforall{}[j:Id].    ((i{}\mrightarrow{}j)\mmember{}G  \mmember{}  \mBbbP{})


By

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Latex:
(Unfold  `id-graph-edge`  0  THEN  Auto  THEN  Fold  `id-graph`  0  THEN  Auto)

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