$ sudo apt-get remove libisl10 

Uninstall libisl10 including dependent package

If you would like to remove libisl10 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libisl10 

Use Purging libisl10

If you use with purge options to libisl10 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libisl10 

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove libisl10 

See Also,