glogic software package provides graphical logic circuit simulator, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install glogic
glogic is installed in your system.
Make ensure the glogic package were installed using the commands given below,
$ sudo dpkg-query -l | grep glogic *
You will get with glogic package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Electronics |
| Package | glogic |
| Version | 2.6-2 |
| Description | graphical logic circuit simulator |
| Sub Section | Electronics |