Question

Let A={14,15,16,17,18,19}

a. How many subsets does A have?
b. How many proper subsets does A have?

Answer 1

It can be shown that, for a set with n elements, there are 2^n subsets.
For proper subsets, subtract 1 from 2^n

Answer 2

hold on what?
Wouldn't there be 6 elements...
and...

Answer 3

I'm drawing blanks here...

Answer 4

yes there are 6 elements, and thus there are 2^6 subsets

Answer 5

so 6 subsets and 2 proper subsets?

Answer 6

2^6 does not equal 6