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Step * of Lemma lsrc_wf

∀[l:IdLnk]. (source(l) ∈ Id)
BY
{ (Unfolds ``IdLnk lsrc`` 0 THEN Auto) }

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Latex:


\mforall{}[l:IdLnk].  (source(l)  \mmember{}  Id)


By

(Unfolds  ``IdLnk  lsrc``  0  THEN  Auto)

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