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At: decidable l member

  A:Type, x:A. (x,y:A. Dec(x = y))  (L:A List. Dec((x  L)))

By: InductionOnList
THEN
Try (RWO Thm* l:T List, a,x:T. (x  [a / l])  x = a  (x  l) 0)
THEN
Try (RWO Thm* x:T. (x  nil)  False 0)


Generated subgoals:

None

About:
listconsnildecidableuniverseequalimpliesorfalseall
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PrintForm Definitions Lemmas mb event system 2 Sections EventSystems Doc