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Step * of Lemma fps-sub_wf

∀[X:Type]. ∀[r:CRng]. ∀[f,g:PowerSeries(X;r)].  ((f-g) ∈ PowerSeries(X;r))
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[X:Type].  \mforall{}[r:CRng].  \mforall{}[f,g:PowerSeries(X;r)].    ((f-g)  \mmember{}  PowerSeries(X;r))


By

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Latex:
ProveWfLemma

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