## Zusammenfassung

By *a multiplication* or a *binary operation in the set G* we mean a relationship between the elements of *G* by which there corresponds, to every two-membered sequence of the elements *a,b ϵ G*, exactly one element *c ϵ G*; in other words, a relationship by which every two-membered sequence of the elements *a, b* of *G* is mapped onto an element *c* of the same set *G*. The element *c* is called the product of *a* and *b* and is denoted by *a.b* or *ab*; so we have *c = ab*, where *a, b* is the first, second factor of the product *c*, respectively.

## Preview

Unable to display preview. Download preview PDF.

## Copyright information

© Springer Basel AG 1976