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(* ========================================================================= *)
(* THE KNUTH-BENDIX TERM ORDERING *)
(* Copyright (c) 2002 Joe Leslie-Hurd, distributed under the BSD License *)
(* ========================================================================= *)
signature KnuthBendixOrder =
sig
(* ------------------------------------------------------------------------- *)
(* The weight of all constants must be at least 1, and there must be at most *)
(* one unary function with weight 0. *)
(* ------------------------------------------------------------------------- *)
type kbo =
{weight : Term.function -> int,
precedence : Term.function * Term.function -> order}
val default : kbo
val compare : kbo -> Term.term * Term.term -> order option
end
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