- #1

Now, I was able to do this using the definition of suprema and infima and so fourth, but it is one godawful mess. I could sumbit it as is, but I was wondering if there's an easier way.

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- Thread starter Icebreaker
- Start date

- #1

Now, I was able to do this using the definition of suprema and infima and so fourth, but it is one godawful mess. I could sumbit it as is, but I was wondering if there's an easier way.

- #2

Muzza

- 695

- 0

Let C be an upper bound of I, and D an upper bound of J. Then max{C, D} is an upper bound of [tex]I \cap J[/tex]. Similarly for the lower bound.

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