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Step * of Lemma vs-neg-neg

∀[K:Rng]. ∀[vs:VectorSpace(K)]. ∀[x:Point(vs)].  (-(-(x)) = x ∈ Point(vs))
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1. K : Rng
2. vs : VectorSpace(K)
3. x : Point(vs)
⊢ -(-(x)) = x ∈ Point(vs)

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Latex:

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Latex:
\mforall{}[K:Rng].  \mforall{}[vs:VectorSpace(K)].  \mforall{}[x:Point(vs)].    (-(-(x))  =  x)


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