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"almost groups" are called semigroups. Somehow people have written multiple books on the subjects.
by llamaz 10y ago
"almost groups" are called semigroups. Somehow people have written multiple books on the subjects.
- Someone 10y agoOops and thanks. I don't know how I managed to not fish that out of my memory while thinking whether half groups or incomplete groups existed. I even thought of the term quasigroup (or did I think of 'almost group'?) but unfortunately didn't google it, as it would have learnt me they exist.