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Math Forum » Discussions » Math Topics » discretemath

Topic: Sets Forming Partitions
Replies: 6   Last Post: Oct 7, 2012 6:19 PM

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Ben Brink

Posts: 180
From: Rosenberg, TX
Registered: 11/11/06
RE: Sets Forming Partitions
Posted: Oct 6, 2012 9:19 PM
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Edward,
Don't have your original post, so I can't comment on (a). On (d), my understanding of "partition of {1,2,3,4,5,6}" is that 5 must be in one of the classes. It isn't.
Thanks again for a great problem.
Ben


> Date: Sat, 6 Oct 2012 19:55:17 -0400
> From: discussions@mathforum.org
> To: discretemath@mathforum.org
> Subject: Re: RE: Sets Forming Partitions
>
> Ok so every number of S has to be in one of the sets as well for it to be a partition as well? Is that what you were getting at with (d.) so in this case now (d.) is not a partition of S.
>
> Next the ordered pairs for (a.) would be:
> (1,1), (3,3), (1,3), (3,1), (5,5), (4,4), (5,4), (4,5) (2,2), (6,6), (2,6), (6,2)?
>
> Is this all correct?

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