Answer to Question #70739 in Abstract Algebra for Pkm

Question #70739
If a ring has a unit, then it has only one unit. Is this statement true or false ,justify your answer.
1
Expert's answer
2017-10-27T16:54:07-0400
Statement is true.
Let the ring have two units 1 and 1', then 1=1*1'=1' => 1=1'

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