assume R is a ring with unity e. Prove: if a is in R has a multiplicative inverse, the multiplicative inverse of a is unique.

so if ax=xa=e is the multiplicative inverse, the to make it unique, how do you show that?

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- Jan 21st 2010, 07:05 AMbookie88rings
assume R is a ring with unity e. Prove: if a is in R has a multiplicative inverse, the multiplicative inverse of a is unique.

so if ax=xa=e is the multiplicative inverse, the to make it unique, how do you show that? - Jan 21st 2010, 08:33 AMDrexel28