集合A={a,b,c,d,e,f}所有真子集

题目

集合A={a,b,c,d,e,f}所有真子集
把格式也写上啊

答案

{a},{b},{c},{d},{e},{f},{a,b},{a,c},{a,d},{a,e},{a,f},{b,c},{b,d},{b,e},{b,f},{c,d},{c,e},{c,f},{d,e},{d,f},{e,f},{a,b,c},{a,b,d},{a,b,e},{a,b,f},{a,c,d},{a,c,e},{a,c,f},{a,d,e},{a,d,f},{a,e,f},{a,b,c,d},{a,b,c,e},{a,b,c,f}{a,c,d,e}{a,c,d,f},{a,d,e,f}{a,b,c,d,e}
{a,b,c,d,f},空集
不好意思,写晕了.