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Step * of Lemma sigma-unelim-elim

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∀[X:j⊢]. ∀[A:{X ⊢ _}]. ∀[B:{X.A ⊢ _}].  (SigmaElim o SigmaUnElim = 1(X.A.B) ∈ X.A.B ij⟶ X.A.B)
BY
{ PresheafMLTTInstance Obid: ps-sigma-unelim-elim⋅ }

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Latex:

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Latex:
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\mforall{}[X:j\mvdash{}].  \mforall{}[A:\{X  \mvdash{}  \_\}].  \mforall{}[B:\{X.A  \mvdash{}  \_\}].    (SigmaElim  o  SigmaUnElim  =  1(X.A.B))


By

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Latex:
PresheafMLTTInstance  Obid:  ps-sigma-unelim-elim\mcdot{}

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