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Step * of Lemma rfun-ap_wf

∀[f:ℝ ⟶ ℝ]. ∀[x:ℝ].  (f(x) ∈ ℝ)
BY
{ ProveWfLemma }

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Latex:

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


By

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Latex:
ProveWfLemma

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