On a generalization of the associative law
On a generalization of the associative law
t Frobenius (Über endliche Gruppen, Berliner Sitzungsberichte, 1895) defines the classic finite groups by the four following postulates: 1.The operation that will be considered is uniform (eindeutig) and applicable to any two elements.2. This operation is uniformly reversible (eindeutig umkehrbar), i.e. from AB = AC or BA=CA it follows that …