This is just to test the commands. I seem to be able to insert mathematical symbols inside the text, like , or . I should also be able to emulate the display environment. Let us write

Yes, that is alright, but I had to align center manually. Can I write something meaningful, like a definition or a theorem, in a way that emphasize it?

**Theorem (the mean value theorem) **Let be a function that is continuous on the closed interval and differentiable on the open interval , then there exists a number in such that

I think I will have to number my equation manually, like this:

I guess this is tolerable for now.

That is all!

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