I recently switched from Windows 10 to Linux. I am trying to install Prolog and I followed the installation instructions on https://www.swi-prolog.org/build/PPA.html. I had no errors during the commands apt-add repository, apt-get update and apt-get install swi-prolog.

I expected just to see Prolog in my applications, but isn't listed and can't be found via the search. I'm very confused because I don't know where to look. In Windows I could look in my Program Files directory or in the installed software display. Do I have to find and start it via the Terminal? Isn't the installation finished? Please help.


From the website manual, it says to type "swipl" into the terminal (without quotes).


Hope it helps.

  • 1
    Thanks, the swipl command does work. But I used Prolog in windows before and it had it's own UI. I was expecting the same here tbh. – Paul Erlenmeyer Oct 22 '19 at 20:11
  • Sorry, I am not familiar with the software, so I don't know if either there is another command to start a GUI or if it's not included in Linux. – user107464 Oct 22 '19 at 20:27
  • 1
    I thought so. Thanks anyway. Big help :)! – Paul Erlenmeyer Oct 22 '19 at 20:32

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