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Step * of Lemma rv-minus_wf

∀[rv:RealVectorSpace]. ∀[x:Point].  (-x ∈ Point)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[rv:RealVectorSpace].  \mforall{}[x:Point].    (-x  \mmember{}  Point)


By

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Latex:
ProveWfLemma

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