Step * 1 of Lemma mem_bsublist


1. DSet
2. as DisList{s}
3. bs |s| List
4. ↑bsublist(s;as;bs)
5. |s|
6. ↑(c ∈b as)
⊢ ↑(c ∈b bs)
BY
(Using [`as',as] (BLemma `mem_bsublist_imp`) THEN Auto) }


Latex:


Latex:

1.  s  :  DSet
2.  as  :  DisList\{s\}
3.  bs  :  |s|  List
4.  \muparrow{}bsublist(s;as;bs)
5.  c  :  |s|
6.  \muparrow{}(c  \mmember{}\msubb{}  as)
\mvdash{}  \muparrow{}(c  \mmember{}\msubb{}  bs)


By


Latex:
(Using  [`as',as]  (BLemma  `mem\_bsublist\_imp`)  THEN  Auto)




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