PlanetPhysics/Trivial Groupoid

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


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

See also[edit]


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

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