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Step * of Lemma weighted-sum_wf

∀[p:ℚ List]. ∀[F:ℕ||p|| ⟶ ℚ].  (weighted-sum(p;F) ∈ ℚ)
BY
{ (Unfolds ``weighted-sum`` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[p:\mBbbQ{}  List].  \mforall{}[F:\mBbbN{}||p||  {}\mrightarrow{}  \mBbbQ{}].    (weighted-sum(p;F)  \mmember{}  \mBbbQ{})


By

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Latex:
(Unfolds  ``weighted-sum``  0  THEN  Auto)

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