+ Some t when
+ not omit_conclusion or
+ (* CSC: I ignore the omit_conclusion flag in this case. *)
+ (* CSC: Is this the correct behaviour? In the stylesheets *)
+ (* CSC: we simply generated nothing (i.e. the output type *)
+ (* CSC: of the function should become an option. *)
+ conclude.Con.conclude_method = "BU_Conversion" ->