val set_default : string -> UriManager.uri list -> unit
val reset_defaults : unit -> unit
-val eq_URI : unit -> UriManager.uri
+val eq_URI : unit -> UriManager.uri option
val is_eq_URI : UriManager.uri -> bool
+val is_eq_refl_URI : UriManager.uri -> bool
val is_eq_ind_URI : UriManager.uri -> bool
val is_eq_ind_r_URI : UriManager.uri -> bool
+val is_trans_eq_URI : UriManager.uri -> bool
+val is_sym_eq_URI : UriManager.uri -> bool
-exception NotRecognized;;
+exception NotRecognized of string;;
+val eq_refl_URI : eq:UriManager.uri -> UriManager.uri
val eq_ind_URI : eq:UriManager.uri -> UriManager.uri
val eq_ind_r_URI : eq:UriManager.uri -> UriManager.uri
val trans_eq_URI : eq:UriManager.uri -> UriManager.uri
val sym_eq_URI : eq:UriManager.uri -> UriManager.uri
-val false_URI : unit -> UriManager.uri
-val true_URI : unit -> UriManager.uri
-val absurd_URI : unit -> UriManager.uri
+val false_URI : unit -> UriManager.uri option
+val true_URI : unit -> UriManager.uri option
+val absurd_URI : unit -> UriManager.uri option