PlanetPhysics/Trivial Groupoid

From Wikiversity
Jump to navigation Jump to search

"At the opposite extreme to varieties determined by their finite members are those which have only one finite member, the trivial groupoid."[1]

Category[edit]

"Categorically any setoid is a trivial groupoid, ie a category where every morphism is an isomorphism."[2]

See also[edit]

References[edit]

  1. Sherman K Stein (April 1963). "Finite models of identities". Proceedings of the American Mathematical Society 14 (02): 216-22. http://www.ams.org/proc/1963-014-02/S0002-9939-1963-0144995-X/S0002-9939-1963-0144995-X.pdf. Retrieved 2015-06-29. 
  2. Lua error in Module:Citation/CS1 at line 3556: bad argument #1 to 'pairs' (table expected, got nil).

External links[edit]