Описание слайда:
Subsets 1
If all the elements of a set S are also elements of a set T, then S is a subset of T
For example, if S = {2, 4, 6} and T = {1, 2, 3, 4, 5, 6, 7}, then S is a subset of T
This is specified by S T
Or by {2, 4, 6} {1, 2, 3, 4, 5, 6, 7}
If S is not a subset of T, it is written as such:
S T
For example, {1, 2, 8} {1, 2, 3, 4, 5, 6, 7}