Step * 1 of Lemma sv-bag-tail_wf


1. Type
2. bs bag(A)
3. single-valued-bag(bs;A)
⊢ bs ∈ List
BY
(BLemma `single-valued-bag-is-list` THEN Auto) }


Latex:



Latex:

1.  A  :  Type
2.  bs  :  bag(A)
3.  single-valued-bag(bs;A)
\mvdash{}  bs  \mmember{}  A  List


By


Latex:
(BLemma  `single-valued-bag-is-list`  THEN  Auto)




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