The Operations of On-Sets®

Sample Universe

									B
1	2	3	4	5	6	7	8	9	10

OPERATION	MEANING	EXAMPLE (for Universe above)
Union (U)	The cards that are in either set	B U R = 6 (cards 1-6)
Intersection (ñ)	The cards that are in both sets	B ñ R = 3 (cards 1-3)
Subtraction (-)	The cards that are in the first set but not the second	B - R = 1 (card 4)
Complement (')	The cards that not in the set	B' = 6 (cards 5-10)

How many cards in the Sample Universe above are in each of these sets?

1. R U G

2. G - Y

3. G ñ B

4. G'

5. (R U Y)'

6. R' - Y

Answers

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