Question

Scrieti toate submultimile multimii {1,2,3,4,5}
a)care nu contin pe3
b)care nu contin nici pe1,nici pe5
c)care contin pe 5
d)care contin pe2,dar nu contin pe 3
e)care contin pe 1,2,3
f)care contin pe 1,2,dar nu contin pe 4

Answer 1

a. ∅, {1}, {2}, {4}, {5}, {1,2}, {1,4}, {1, 5}, {2, 4}, {2,5}, {4,5}, {1,2,4}, {1,2,5}, {1,2,4,5}
b. ∅, {2}, {3}, {4}, {2,3}, {2,4}, {3,4}, {2,3,4}
c. {5}, {1,5}, {2,5}, {3, 5}, {4,5}, {1,2,5}, {1,3, 5}, {1,4,5}, {2,3,5}, {2,4,5}, {1, 2, 3, 5}, {1, 2, 4, 5}, {1,3,4,5}, {1, 2, 3, 4, 5}
d. {2}, {1,2}, {2,4}, {2,5}, {1,2,4}, {1,2,5}, {2,4,5}, {1,2,4,5}
e. {1,2,3}, {1,2,3,4}, {1,2,3,5}, {1,2,3,4,5}
f. {1,2}, {1,2,3}, {1,2,5}, {1,2,3,5}