Step
*
of Lemma
extension-fun_wf
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∀[Gamma:j⊢]. ∀[A:{Gamma ⊢ _}].  (extension-fun{j:l}(Gamma; A) ∈ 𝕌{[i | j'']})
BY
{ ProveWfLemma }
Latex:
Latex:
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\mforall{}[Gamma:j\mvdash{}].  \mforall{}[A:\{Gamma  \mvdash{}  \_\}].    (extension-fun\{j:l\}(Gamma;  A)  \mmember{}  \mBbbU{}\{[i  |  j'']\})
By
Latex:
ProveWfLemma
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