2

Given: $S=\{1,2,3,4,5,6,7\}$

How many subsets of $S$ are there which have more than one element?

I know that there are $2^7=128$ subsets of $S$. Now, if we take into account the empty set, then shouldn't there be $2^7-8=120$ subsets of $S$ that have more than one element? I'm trying to find out if my thinking is correct.

Thank you in advance!

Community
  • 1
user3727648
  • 183

1 Answers1

0

community wiki answer so this question can be closed

Your solution is correct.

N. F. Taussig
  • 76,571