05/14/2014, 03:51 PM

first attempt to study the relation to associativity...

if is associative then , where is defined as usual and

but if it is not associative then the existence of an injection maybe depend on the existence of a binary function witht his property

or in other words

someone knows when such operation can exist and how is called this property? When is right invertible then but I don't know when this operation becomes indipendent from

if is associative then , where is defined as usual and

but if it is not associative then the existence of an injection maybe depend on the existence of a binary function witht his property

or in other words

someone knows when such operation can exist and how is called this property? When is right invertible then but I don't know when this operation becomes indipendent from

MathStackExchange account:MphLee