# Sub-APS of groups

From Groupprops

## Contents |

This article gives a basic definition in the following area: APS theory

View other basic definitions in APS theory |View terms related to APS theory |View facts related to APS theory

BEWARE!This term is nonstandard and is being used locally within the wiki. [SHOW MORE]

## Definition

Let be an APS of groups. A sub-APS of is, for every , a subgroup of such that whenever . Thus, can be viewed as an APS of groups, in its own right.