Number of different partitions

**alexmahone** · July 4th 2011, 11:19 AM

Find the number of different partitions of a set having 5 elements.

**Plato** · July 4th 2011, 11:23 AM

Originally Posted by alexmahone

Find the number of different partitions of a set having 5 elements.

You are looking for the fifth BELL NUMBER.

**alexmahone** · July 4th 2011, 11:24 AM

Originally Posted by Plato

You are looking for the fifth BELL NUMBER.

Thanks. Could you show me how to compute it?

**Plato** · July 4th 2011, 11:31 AM

Originally Posted by alexmahone

Thanks. Could you show me how to compute it?

The computation is right there on that page.
You must learn to do some of your own work.
Find $B_5$ .

Thread: Number of different partitions