Some of the things I've learned every day since Oct 10, 2016
92: Order (Groups)
January 16, 2017Posted by on
The order of a group , often denoted , is the cardinality of its underlying set. If the order is finite, then is called a finite group, and likewise for infinite order.
An example of a group with finite order would be the dihedral group for some . An example of one with infinite order would be the group of together with addition.