The cardinal number of the set {cat, dog, horse, fish, lizard, meerkat, rhinoceros, elephant, giraffe, platypus, hippopotamus, skunk} is ____.
I think its 12 right?
I usually call it cardinality.
It's right if you have the good reason for it. Can you explain?
because its the amount in the {}
I suppose you mean "the number of elements in the set".
That would be correct.
yes :) thanks
You're welcome!
To determine the cardinal number of a set, which represents the number of elements in that set, you need to count how many items are in the set. Let's count together:
1. cat
2. dog
3. horse
4. fish
5. lizard
6. meerkat
7. rhinoceros
8. elephant
9. giraffe
10. platypus
11. hippopotamus
12. skunk
So, yes, you are correct! The cardinal number of the set {cat, dog, horse, fish, lizard, meerkat, rhinoceros, elephant, giraffe, platypus, hippopotamus, skunk} is indeed 12.