Mirror Backup

Hello All!

I have a very simple question.
Im studying for 40-431 and just finished reading about Log Shipping.
It says in the book that when using Log Shipping you cannot run any other log backups because that would affect the LSNs. Can one do log backups with mirroring - principle and mirror?
Because mirroring uses log to keep the mirror up-to-date and synchs on LSN.

Thank youof course,you can backup your log in mirror.mirror and log shipping work in different way.

thanks.