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Step * of Lemma xxsymmetrize_wf

∀[T:Type]. ∀[E:T ⟶ T ⟶ ℙ].  (xxsymmetrize(E) ∈ T ⟶ T ⟶ ℙ)
BY
{ ((Unfold `xxsymmetrize` 0) THEN Auto) }

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Latex:

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Latex:
\mforall{}[T:Type].  \mforall{}[E:T  {}\mrightarrow{}  T  {}\mrightarrow{}  \mBbbP{}].    (xxsymmetrize(E)  \mmember{}  T  {}\mrightarrow{}  T  {}\mrightarrow{}  \mBbbP{})


By

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Latex:
((Unfold  `xxsymmetrize`  0)  THEN  Auto)

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