Question

Scrieti toate submultimile multimilor:
a) (1,2) b) (2,3,5) c) (a,b,c,d)

Answer 1

a) {1,2}
b) {2,3} ; {2,5} ; {3,5}
c) {a,b} ; {a,c} ; {a,d} ; {b,c} ; {b,d} ; {c,d} ; {a,b,c} ; {a,c,d} ; {b,c,d}