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Step * of Lemma rrange_wf

∀[I:Interval]. ∀[f:I ⟶ℝ].  (f[x](x∈I) ∈ Set(ℝ))
BY
{ (Unfold `rset` 0 THEN ProveWfLemma THEN MemTypeCD THEN Auto THEN All Reduce THEN ParallelLast THEN Auto) }

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Latex:

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Latex:
\mforall{}[I:Interval].  \mforall{}[f:I  {}\mrightarrow{}\mBbbR{}].    (f[x](x\mmember{}I)  \mmember{}  Set(\mBbbR{}))


By

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Latex:
(Unfold  `rset`  0
  THEN  ProveWfLemma
  THEN  MemTypeCD
  THEN  Auto
  THEN  All  Reduce
  THEN  ParallelLast
  THEN  Auto)

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