Geodesic
A-loops close to code loops are groups
Commentationes Mathematicae Universitatis Carolinae, Tome 41 (2000) no. 2, pp. 245-249.

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Let $Q$ be a diassociative A-loop which is centrally nilpotent of class 2 and which is not a group. Then the factor over the centre cannot be an elementary abelian 2-group.
Classification : 20N05
Keywords: A-loop; central nilpotency; Osborn problem 
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     title = {A-loops close to code loops are groups},
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Drápal, Aleš. A-loops close to code loops are groups. Commentationes Mathematicae Universitatis Carolinae, Tome 41 (2000) no. 2, pp. 245-249. http://geodesic.mathdoc.fr/item/CMUC_2000__41_2_a3/