Take a look at this:
I say that e^{i\pi} + 1 = 0.
Also,
\oint_c{f(\bar{\rm x}) \cdot d\bar{\rm x}}.
Not to mention P(y \, | \, \theta).
And \{x\in\Re: \exists p\in\mathbb{N} [x]: p(x)=0\}.
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