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Step * of Lemma i-member_wf

∀[I:Interval]. ∀[x:ℝ].  (x ∈ I ∈ ℙ)
BY
{ Auto }

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Latex:

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


By

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Latex:
Auto

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