Question

Fie multimea C={1,2,3,4,5}. Gasiti toate submultimile lui C care contin elementele 1 si 3

Answer 1

{1,3} {1,2,3} {1,3,4} {1,3,5}
{1,3,2,4} {1,3,2,5} {1,3,4,5}