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+(** ROmega is now aware of the bodies of context variables
+    (of type Z or nat).
+    See also #148 for the corresponding improvement in Omega.
+*)
+
+Require Import ZArith ROmega.
+Open Scope Z.
+
+Goal let x := 3 in x = 3.
+intros.
+romega.
+Qed.
+
+(** Example seen in #4132
+    (actually solvable even if b isn't known to be 5) *)
+
+Lemma foo
+  (x y x' zxy zxy' z : Z)
+  (b := 5)
+  (Ry : - b <= y < b)
+  (Bx : x' <= b)
+  (H : - zxy' <= zxy)
+  (H' : zxy' <= x') : - b <= zxy.
+Proof.
+romega.
+Qed.