Item 1.2.1.c.
\(2^6 - 2^3 = 56\) subsets. There are 8 subsets which do not contain any odd numbers (select yes/no for each even number).
\(2^6 - 2^3 = 56\) subsets. There are 8 subsets which do not contain any odd numbers (select yes/no for each even number).