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Step * of Lemma comb_for_mset_mem_wf

λs,x,a,z. (x ∈b a) ∈ s:DSet ⟶ x:|s| ⟶ a:MSet{s} ⟶ (↓True) ⟶ 𝔹
BY
{ ProveOpCombTyping `mset_mem_wf` }

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Latex:

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Latex:
\mlambda{}s,x,a,z.  (x  \mmember{}\msubb{}  a)  \mmember{}  s:DSet  {}\mrightarrow{}  x:|s|  {}\mrightarrow{}  a:MSet\{s\}  {}\mrightarrow{}  (\mdownarrow{}True)  {}\mrightarrow{}  \mBbbB{}


By

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Latex:
ProveOpCombTyping  `mset\_mem\_wf`

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