Just testing some things

A bunch of text formatted with italics, bold, both at once, underline, and strikethrough

$$f(x) = 4^x$$

$$f(x) = 4^x$$

$$f(x) = 4^x$$

def foo(x):
    print("bar")

Inline math looks like $g(x) = x*2$

A quote block I suppose

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