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[smlnj] View of /MLRISC/trunk/graphs/group.sig
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View of /MLRISC/trunk/graphs/group.sig

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Revision 2126 - (download) (as text) (annotate)
Thu Nov 2 16:11:29 2006 UTC (12 years, 11 months ago) by blume
File size: 366 byte(s)
moved MLRISC to toplevel
(*
 * Commutative groups.
 * 
 * -- Allen
 *)

signature ABELIAN_GROUP =
sig
   type elem 
   val +    : elem * elem -> elem
   val -    : elem * elem -> elem
   val ~    : elem -> elem
   val zero : elem
   val <    : elem * elem -> bool
   val ==   : elem * elem -> bool
end

signature ABELIAN_GROUP_WITH_INF =
sig

   include ABELIAN_GROUP
   val inf : elem

end

root@smlnj-gforge.cs.uchicago.edu
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