Let A and B be closed subsets of M, and supposed that both and are connected. Prove that A and B are connected.

Find an example of disconnected subsets A,B of R such that and are connected.

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- November 25th 2011, 05:58 PM #1

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- November 25th 2011, 08:58 PM #2

- November 28th 2011, 01:39 PM #3

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- November 28th 2011, 02:34 PM #4

- November 28th 2011, 09:23 PM #5

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## Re: need an example here

- November 29th 2011, 04:23 AM #6