I would like to import the equilateral triangle symbols `\medtriangleup`, `\medtriangleright`, `\medtriangleleft`, `\medtriangledown` from the `fdsymbol` package, without it screwing up `\nabla` and changing it into a big black dot.

I've found [similar answers](https://tex.stackexchange.com/questions/398870/importing-single-symbol-from-fdsymbol) [about importing symbols](https://tex.stackexchange.com/questions/499803/how-to-import-a-few-symbols-from-fdsymbol) from this package but I'm having trouble parsing the information to work out how to adapt it for my needs.

Can anyone point me towards any relevant documentation or help me understand what the steps involved are for my particular task?

Or, a workaround, does anyone know a package with nice-looking triangles like those found in `fdsymbol`, that I can import without messing up `\nabla`??