Let A and B be two arbitrary finite sets. Show that
Can anybody do that. Cause I sure can't.
![](https://dz3ixmv6nok8z.cloudfront.net/static/img/ph-508.604ed20cffa9.gif)
Can anybody do that. Cause I sure can't.
yumchen:
You doing algebra? I can tutor you but I need a book to look at.