This week I spent some time to implement set theory fundamentals using Python. As COVID-19 is doing the rounds, chose the COVID-19 test kit clinical trials as a use-case.

A Jupyter notebook file has been embedded into this article. I used some Venn diagrams to illustrate the realtionship between the sets. We need to install a Python library to visualize the sets as Venn diagrams; execute following command to install `matplotlib-venn`

library.

```
pip3 install matplotlib matplotlib-venn
```

Download the IPYNB file to your system. In your terminal, change directory to the location where the file was downloaded to and run the Jupyter notebook by executing following command.

```
jupyter notebook
```

If you are using Jupyter lab

```
jupyter lab
```