+val is_eq_rec_URI : UriManager.uri -> bool
+val is_eq_rec_r_URI : UriManager.uri -> bool
+val is_eq_rect_URI : UriManager.uri -> bool
+val is_eq_rect_r_URI : UriManager.uri -> bool
+val is_trans_eq_URI : UriManager.uri -> bool
+val is_sym_eq_URI : UriManager.uri -> bool
+val is_eq_f_URI : UriManager.uri -> bool
+val is_eq_f_sym_URI : UriManager.uri -> bool
+val in_eq_URIs : UriManager.uri -> bool
+
+val eq_URI_of_eq_f_URI : UriManager.uri -> UriManager.uri