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At: cons before

  T:Type, l:T List, a,x,y:T.
  x before y  [a / l x = a & (y  l x before y  l


By: (Unfold `l_before` 0 THEN RWO Thm* x:TL:T List. (x  L [x L 0)
THEN
(RWO
(Thm* x1,x2:TL1,L2:T List.
(Thm* [x1 / L1 [x2 / L2 x1 = x2 & L1  L2  [x1 / L1 L2
(0)


Generated subgoals:

None

About:
listconsconsniluniverseequalandorall
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PrintForm Definitions Lemmas mb list 1 Sections MarkB generic Doc