Editing Monster group (section)

== Subquotients ==
[[File:MonsterSporadicGroupGraph.svg|thumb|350px|Diagram of the 26 sporadic simple groups, showing subquotient relationships.]]

The monster contains 20 of the 26 [[sporadic groups]] as subquotients. This diagram, based on one in the book ''Symmetry and the Monster'' by [[Mark Ronan]], shows how they fit together.{{sfn|Ronan|2006}} The lines signify inclusion, as a subquotient, of the lower group by the upper one. The circled symbols denote groups not involved in larger sporadic groups. For the sake of clarity redundant inclusions are not shown.