集合P={a,b,{Φ}},其幂集等于多少集合P={a,b,{Φ}},其幂集P=
问题描述:
集合P={a,b,{Φ}},其幂集等于多少
集合P={a,b,{Φ}},其幂集P=
答
幂集P={Φ,{a,b,{Φ}},{a},{b},{{Φ}},{a,b},{a,{Φ}},{b,{Φ}}}
集合P={a,b,{Φ}},其幂集等于多少
集合P={a,b,{Φ}},其幂集P=
幂集P={Φ,{a,b,{Φ}},{a},{b},{{Φ}},{a,b},{a,{Φ}},{b,{Φ}}}