Batteries user guide : BatNumber.Compare

`sig type bat__compare_t val ( <> ) : BatNumber.Compare.bat__compare_t -> BatNumber.Compare.bat__compare_t -> bool val ( >= ) : BatNumber.Compare.bat__compare_t -> BatNumber.Compare.bat__compare_t -> bool val ( <= ) : BatNumber.Compare.bat__compare_t -> BatNumber.Compare.bat__compare_t -> bool val ( > ) : BatNumber.Compare.bat__compare_t -> BatNumber.Compare.bat__compare_t -> bool val ( < ) : BatNumber.Compare.bat__compare_t -> BatNumber.Compare.bat__compare_t -> bool val ( = ) : BatNumber.Compare.bat__compare_t -> BatNumber.Compare.bat__compare_t -> bool end`