Group theory Create Classic editor Talk0 Category page This page needs content. You can help by adding a sentence or a photo. Add to this page!orSearch for "Group theory" “ Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual... Numbers (numerals) Pages in category "Group theory" This category contains only the following page. N Numbers (numerals) Retrieved from "http://psychology.wikia.com/wiki/Category:Group_theory"