(***************************************************************************)
(* Formalization of the Chou, Gao and Zhang's decision procedure.          *)
(* Julien Narboux (Julien@narboux.fr)                                      *)
(* LIX/INRIA FUTURS 2004-2006                                              *)
(* University of Strasbourg 2008                                           *)
(***************************************************************************)
Require Export field_variable_isolation_tactic.
(****************************************************)
(*  General properties about fields                    *)
(****************************************************)

Lemma field_prop_1 : forall a b : F, a + b = a -> b = 0.
Proof with try solve [ ring | congruence ].