The 7 International Co-operative principles
1 – Voluntary & Open Membership
2 – Democratic Member Control
3 – Member Economic Participation
4 – Autonomy & Independence
5 – Education, Training & Information
6 – Co-operation among Co-operatives
7 – Concern for Community
For more information, see this from the Co-op Housing Federation of Canada (CHFC):
Getting-our-co-op-principles-right-article