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At: firstn is iseg 1 1 1 2 2

1. T : Type
2. T List
3. l : T List
4. u : T
5. v : T List
6. v = firstn(||v||;v @ l)
  [u / v] = [u / firstn(||v||;v @ l)]


By: Analyze


Generated subgoals:

None

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

(13steps total) PrintForm Definitions Lemmas mb list 1 Sections MarkB generic Doc