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March 2, 2015

March 2, 2015

Posted by **sabrina** on Saturday, August 8, 2009 at 11:37am.

If n(c)=8, what is the maximum number of elements n B?

What is the least possible number of elements B?

- elmentary math for educators -
**MathMate**, Saturday, August 8, 2009 at 11:50amIf B is a proper subset of C, we have

B ⊊ C

This means that B is a any subset of B which is not equal to C. So the maximum number of elements of B is the cardinality of C minus one.

Thus the maximum number of elements of B is 8-1 = 7.

Since the empty set ∅ is a member of every set, the least number of elements of B is 0.

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