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Step * of Lemma exists!_wf

∀[T:Type]. ∀[P:T ⟶ ℙ].  (∃!x:T. P[x] ∈ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[T:Type].  \mforall{}[P:T  {}\mrightarrow{}  \mBbbP{}].    (\mexists{}!x:T.  P[x]  \mmember{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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