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At: l member decidable 1
1. T : Type
2. x : T
3. T List
4. y:T. x = y  x = y
  (x  nil)  (x  nil)
By: RWW Thm* x:T. (x  nil)  False 0 THEN SimpConcl

Generated subgoals:

None

About:
listniluniverseequalorfalseall
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(3steps total) PrintForm Definitions Lemmas mb list 1 Sections MarkB generic Doc