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Step * of Lemma dep-isect_wf

∀A:𝕌'. ∀B:A ⟶ 𝕌'.  (x:A ⋂ B[x] ∈ 𝕌')
BY
{ (Auto THEN Unfold `member` 0) }

1
1. A : 𝕌'@i 2
2. B : A ⟶ 𝕌'@i 2
⊢ x:A ⋂ B[x] = x:A ⋂ B[x] ∈ 𝕌'

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Latex:

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Latex:
\mforall{}A:\mBbbU{}'.  \mforall{}B:A  {}\mrightarrow{}  \mBbbU{}'.    (x:A  \mcap{}  B[x]  \mmember{}  \mBbbU{}')


By

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Latex:
(Auto  THEN  Unfold  `member`  0)

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