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Step * of Lemma p_subset_wf

∀[T:Type]. ∀[A,B:T ⟶ ℙ].  (A ⊆{T} B ∈ ℙ)
BY
{ Unfold `p_subset` 0 THEN Auto⋅ }

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Latex:

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Latex:
\mforall{}[T:Type].  \mforall{}[A,B:T  {}\mrightarrow{}  \mBbbP{}].    (A  \msubseteq{}\{T\}  B  \mmember{}  \mBbbP{})


By

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Latex:
Unfold  `p\_subset`  0  THEN  Auto\mcdot{}

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