On-Sets: Subset (C)
The restriction cube Subset is used to establish a one way equality. The
restriction A C B is defined as “All the A cards must have B on them”.
The restriction R C B is read “All the Red cards must have Blue on
them.”
Here is a sample universe:
1
2
B
3
B
4
B
R
Y
G
Y
5
R
G
Y
6
B
R
Y
Use the universe above to find the number of cards in each set name.
Remember to remove cards using the giving restriction.
1. B C G
RUB
2. R C Y
RnY
3. Y C B
B–Y
4. R C G
G‘
5. V C (R U Y)
(V U R) – Y
6. B C ^
(B U R) U ^