Given r and s in a ring R, show that 1 + rs is a unit if and only if 1 + sr is a unit.© BrainMass Inc. brainmass.com March 4, 2021, 5:53 pm ad1c9bdddf
Given r and s in a ring
IF 1 + rs is a unit
s(1+rs) = (1+ sr)s Theorem
Rings and units are investigated.