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Step * of Lemma csm-discrete-sigma

No Annotations
∀[A:Type]. ∀[B:A ⟶ Type]. ∀[X,Y:j⊢]. ∀[s:Y j⟶ X].
  ((Σ discr(A) discrete-family(A;a.B[a]))s = Σ discr(A) discrete-family(A;a.B[a]) ∈ {Y ⊢ _})
BY
{ (Intros
   THEN (InstLemma `csm-cubical-sigma` [⌜X⌝;⌜Y⌝;⌜discr(A)⌝;⌜discrete-family(A;a.B[a])⌝;⌜s⌝]⋅ THENA Auto)
   THEN NthHypSq  (-1)
   THEN RepeatFor 2 ((EqCD THEN Try (Trivial)))
   THEN RepUR ``discrete-family discrete-cubical-type`` 0
   THEN CsmUnfolding
   THEN Auto) }

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Latex:

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Latex:
No  Annotations
\mforall{}[A:Type].  \mforall{}[B:A  {}\mrightarrow{}  Type].  \mforall{}[X,Y:j\mvdash{}].  \mforall{}[s:Y  j{}\mrightarrow{}  X].
    ((\mSigma{}  discr(A)  discrete-family(A;a.B[a]))s  =  \mSigma{}  discr(A)  discrete-family(A;a.B[a]))


By

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Latex:
(Intros
  THEN  (InstLemma  `csm-cubical-sigma`  [\mkleeneopen{}X\mkleeneclose{};\mkleeneopen{}Y\mkleeneclose{};\mkleeneopen{}discr(A)\mkleeneclose{};\mkleeneopen{}discrete-family(A;a.B[a])\mkleeneclose{};\mkleeneopen{}s\mkleeneclose{}]\mcdot{}
              THENA  Auto
              )
  THEN  NthHypSq    (-1)
  THEN  RepeatFor  2  ((EqCD  THEN  Try  (Trivial)))
  THEN  RepUR  ``discrete-family  discrete-cubical-type``  0
  THEN  CsmUnfolding
  THEN  Auto)

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