A configurational characterization of incidence loops which are incidence groups |
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| Authors: | Mario Marchi |
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| Institution: | (1) Dipartimento di Matematica, Università Cattolica, Via Trieste 17, 25121 Brescia, Italia |
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| Abstract: | A fibered incidence loop with parallelism is an incidence group if and only if a generalized  Prismenaxiom (cf. Theorem 1, §2) is valid.Dedicated to Walter Benz on the occasion of his 60th birthday.Research partially supported by the Italian Ministry M.U.R.S.T. (40% and 60 %) and by the NATO grant n. CRG 900103. |
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