Step * 5 of Lemma assert-isname

.....wf..... 
1. Cname List
2. extd-nameset(L)
⊢ z ∈ nameset(L) ∈ Type
BY
(GenConcl ⌜b ∈ Base⌝⋅ THEN Auto) }


Latex:


Latex:
.....wf..... 
1.  L  :  Cname  List
2.  z  :  extd-nameset(L)
\mvdash{}  z  \mmember{}  nameset(L)  \mmember{}  Type


By


Latex:
(GenConcl  \mkleeneopen{}z  =  b\mkleeneclose{}\mcdot{}  THEN  Auto)




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