--- self & other

    ѱ黻ξ˴ޤޤǤʤ뿷
    ޤʣǤϼޤ
    other Ǥʤ to_ary ᥽åɤˤ
    ۤηѴߤޤ

    ǤνʣȽϡObject#eql? [Object/eql?] ˤԤޤ

