(16steps total) PrintForm Definitions Lemmas mb list 1 Sections MarkB generic Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: member append 1 2 1

1. T : Type
2. x : T
3. T List
4. l2 : T List
5. (x  nil)
  (x  l2)


By: Unfold `l_member` -1 THEN Reduce -1 THEN ExRepD


Generated subgoals:

None

About:
listniluniverse
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html

(16steps total) PrintForm Definitions Lemmas mb list 1 Sections MarkB generic Doc