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Step * 1 of Lemma update-context4_wf

.....subterm..... T:t
1:n
1. X : ?CubicalContext
2. context-ok(X)
3. phi : Provisional''''(cttTerm(context-set(X)))
4. istype({t:CubicalContext| allowed(X) ∧ (t = allow(X) ∈ CubicalContext)} )
⊢ X ∈ provisional-type{i 4:l}(CubicalContext)
BY
{ Auto }

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Latex:

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Latex:
.....subterm.....  T:t
1:n
1.  X  :  ?CubicalContext
2.  context-ok(X)
3.  phi  :  Provisional''''(cttTerm(context-set(X)))
4.  istype(\{t:CubicalContext|  allowed(X)  \mwedge{}  (t  =  allow(X))\}  )
\mvdash{}  X  \mmember{}  provisional-type\{i  4:l\}(CubicalContext)


By

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Latex:
Auto

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