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At: no repeats filter

  T:Type, P:(T), l:T List. no_repeats(T;l no_repeats(T;filter(P;l))

By: ((RWO Thm* l:T List. no_repeats(T;l (x,y:Tx before y  l  x = y) 0)
(THEN
((RWO
((Thm* l:T List, P:(T), x,y:T.
((Thm* x before y  filter(P;l P(x) & P(y) & x before y  l
((0))
THEN
BackThruSomeHyp


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About:
listboolassertapplyfunctionuniverseequalimpliesandall
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