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Step * of Lemma fps-pascal_wf

∀[r:CRng]. ∀[x,y:Atom].  (Δ(x,y) ∈ PowerSeries(r))
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[r:CRng].  \mforall{}[x,y:Atom].    (\mDelta{}(x,y)  \mmember{}  PowerSeries(r))


By

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Latex:
ProveWfLemma

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