||'''Book'''|| Advanced Engineering Mathematics ||
 ||'''Author'''|| Erwin Kreyszig ||
 ||'''Edition'''|| 8th Edition ||

/* code_begins */

{{{
a,b,c=var('a,b,c')
S = Set([a,b,c])
K = S.subsets() 
#K represents the required subsets
}}}

/* code_ends */

 * '''Solution by''': 
   * Akash Singh, Student, CRCE