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(* Formalization of the Chou, Gao and Zhang's decision procedure.          *)
(* Julien Narboux (Julien@narboux.fr)                                      *)
(* LIX/INRIA FUTURS 2004-2006                                              *)
(* University of Strasbourg 2008                                           *)
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Require Export field_variable_isolation_tactic.
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(*  General properties about fields                    *)
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Lemma field_prop_1 : forall a b : F, a + b = a -> b = 0.