PrintForm Definitions mb list 1 Sections MarkB generic Doc
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At: map length nat

  A,B:Type, f:(AB), as:A List. ||map(f;as)|| = ||as||  

By: UnivCD THEN ListInd -1 THEN AbReduce 0


Generated subgoals:

None

About:
listfunctionuniverseequalall
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PrintForm Definitions mb list 1 Sections MarkB generic Doc