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(* 02110-1301 USA                                                     *)
(* BIBLI *)
(* fichier de bibliotheque*)
Require Export Arith.
Require Export Omega.
Global Set Asymmetric Patterns.
Section SEPAR.
(* lorsque l'egalite est decidable sur un ensemble *)

Lemma eq_bool_dec : forall b : bool, {b = true} + {b = false}.