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Konstantin Solomatov committed deecf88

Working through Imp.v

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 (** [] *)
 
-(** Kostik **)
-
 (* #################################### *)
 (** ** Evaluation as a Relation *)
 
     (X ::= ANum 0; Y ::= ANum 1; Z ::= ANum 2) / empty_state ||
     (update (update (update empty_state X 0) Y 1) Z 2).
 Proof. 
-  (* FILL IN HERE *) Admitted.
+  apply E_Seq with (update empty_state X 0). 
+  apply E_Ass. reflexivity.
+  apply E_Seq with (update (update empty_state X 0) Y 1).
+  apply E_Ass. reflexivity.
+  apply E_Ass. reflexivity.
+Qed.
 (** [] *)
 
+(** Kostik **)
+
 (* ################################################################ *)
 (** ** Equivalence of Relational and Step-Indexed Evaluation *)