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At: null member 1
1. T : Type
2. L : T List
3. x : T
4. L = nil
  (x  nil)
By: RWO Thm* x:T. (x  nil)  False 0 THEN SimpConcl

Generated subgoals:

None

About:
listniluniverseequalfalseall
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(2steps total) PrintForm Definitions Lemmas mb list 1 Sections MarkB generic Doc