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Step * 1 of Lemma bag-combine-empty-right


1. L : Top List
⊢ ⋃x∈L.{} ~ {}
BY
{ (RepUR ``bag-combine bag-union bag-map concat empty-bag`` 0 THEN ListInd (-1) THEN Reduce 0 THEN Auto)⋅ }

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Latex:

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Latex:

1.  L  :  Top  List
\mvdash{}  \mcup{}x\mmember{}L.\{\}  \msim{}  \{\}


By

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Latex:
(RepUR  ``bag-combine  bag-union  bag-map  concat  empty-bag``  0
  THEN  ListInd  (-1)
  THEN  Reduce  0
  THEN  Auto)\mcdot{}

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