--- self | other

    ±黻ξˤ줫˴ޤޤǤƴޤ࿷
    ֤ޤʣǤϼޤ
    other Ǥʤ to_ary ᥽åɤˤ
    ۤηѴߤޤ

    ǤνʣȽϡObject#eql? [Object/eql?] ˤԤޤ

