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diff --git a/proof/Relation.v b/proof/Relation.v
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index f7c087d..0000000
--- a/proof/Relation.v
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-(** * Relation: minimal model for finiteness checking
-
-    A relation is reduced to the two fields that [predicted_finite]
-    actually inspects: its name (for database lookup) and its
-    finiteness flag (for the gate decision). *)
-
-From Stdlib Require Import List.
-From Stdlib Require Import String.
-Require Import Schema.
-Import ListNotations.
-
-Record relation := mkRelation {
-  rel_name   : string;
-  rel_finite : bool;
-}.
-
-(** A database is a named collection of relations. *)
-Definition database := list (string * relation).
-
-(** Look up a relation by name. *)
-Fixpoint db_lookup (name : string) (db : database) : option relation :=
-  match db with
-  | []            => None
-  | (n, r) :: rest =>
-    if String.eqb name n then Some r else db_lookup name rest
-  end.