PHYSICS LETTERS A, vol.235, no.4, pp.318-322, 1997 (Journal Indexed in SCI)
We have shown that the non-extensivity of classical set theory is related to unitary quantum groups. Using this nonextensivity property, we define a q-distribution, a binomial q-distribution and a Poisson ii-distribution. (C) 1997 Published by Elsevier Science B.V.