Birkenmeier, Gary F. Exponentiation without associativity. (English) Zbl 0528.20041 Acta Univ. Carol., Math. Phys. 24, No. 2, 3-7 (1983). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document MSC: 20L05 Groupoids (i.e. small categories in which all morphisms are isomorphisms) Keywords:exponentiation in semigroups; Euler-Fermat theorem for finite semigroups PDF BibTeX XML Cite \textit{G. F. Birkenmeier}, Acta Univ. Carol., Math. Phys. 24, No. 2, 3--7 (1983; Zbl 0528.20041) Full Text: EuDML OpenURL