(* Initial invocation: - Patience on us to gain peace and perfection! - *)
-include "background/preamble.ma".
+include "lambda/background/preamble.ma".
+
+include "lambda/notation/functions/variablereferencebyindex_1.ma".
+include "lambda/notation/functions/abstraction_1.ma".
+include "lambda/notation/functions/application_2.ma".
(* TERM STRUCTURE ***********************************************************)