Question

Scrieti toate submultimile multimilor:
A= {1,2} ;
B= {2,3,5} ;
C= {a,b,c,d} .

Answer 1

A submultimi {1} ; {2}

B : {2,3}, {2,5}, {3,5}, {2} ,{3}, {5}

C : {a,b,c}, {a,c,d}, {a,b,d}, {b,c,d}, {a,b}, {a,c}, { a,d}, {b,c}, {b,d}, {c,d}, {a}, {b}, {c}, {d}