Let A and B be finite sets. Prove thefollowing:
(a) |A?B|=|A|+|B|?|A?B|
(b) |A × B| = |A||B|
(c) |{f : A ? B}| = |B||A|
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
(Save $1 )
One time Pay
(Save $5 )
Billed Monthly
*First month only
You can see the logs in the Dashboard.
