# \varnothing 'undefined control sequence'

I am using `amsmath` and all of my math symbols are appearing using `\$ \$` block but `\varnothing` is undefined. `\emptyset` works but its symbol is a bit different than `\varnothing`

Note: images taken from LaTeX wikibook.

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## 1 Answer

You need to load the `amssymb` package.

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