Require Export Basics.PathGroupoids. Require Export Basics.Contractible. Require Export Basics.Equivalences. Require Export Basics.Trunc. Require Export Basics.Decidable. Require Export Basics.Utf8. Require Export Basics.Notations. Require Export Basics.Tactics. Require Export Basics.Classes. Require Export Basics.Iff. Require Export Basics.Nat. Require Export Basics.Numeral.