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I am using Beamer to create presentations. I know that it is possible to use environments like Theorem, Definition and so on:

Great theorem

It appears in the box of different color with its header "Theorem".

I would like to create the same emphasized box, but without any header. How one can do this?

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up vote 5 down vote accepted

It actually depends on the style used, but you can also use the block, alertblock and exampleblock environments to get blocked off text.

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works fine, thanks – Tim Oct 21 '10 at 6:12

The Beamer User Guide (PDF) has some explanations beginning on page 111. Usually you can just write:

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You can also use "Theorem" with a capital "T", as I just found out to my surprise. – Hendrik Vogt Oct 22 '10 at 8:01

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