Short exact sequence:
$\large 0 \to H \to G \to G/H \to 0$
and an integral
$\large \int \sqrt{x} dx$.
Each finite Abelian group is isomorphic to a direct sum of cyclic groups
$\large \Bbb Z_{m_1} \oplus \Bbb Z_{m_2} \oplus \dots \oplus \Bbb Z_{m_n}$
where $m_1|m_2|\dots | m_n$.
(One of my favorite results from group theory.)
Thanks to a gentle soul's responding at tex.stackexchange:
To get LaTeX to work on Blogger, go to Design, then to "edit HTML", then to "edit template". In the HTML file insert the following script right after where it says < head >:
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