Is there a term for a magma $(M,*)$ that contains at least one left identity element, but not necessarily a right identity element? I'm looking for a term that requires only $$\exists e \in M \text{ such that},\, \forall a \in M,\, e*a = a.$$
2026-02-23 19:17:36.1771874256
Term for a magma with a left identity?
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