M maurice New member Jan 31, 2011 #1 ...is not a zero divisor. Prov? let R be a ring and aeR (a an element of R). Assume that a#0 (a is not zero) and a is not a zero divisor. Prove that whenever ab=ac in R, then b=c
...is not a zero divisor. Prov? let R be a ring and aeR (a an element of R). Assume that a#0 (a is not zero) and a is not a zero divisor. Prove that whenever ab=ac in R, then b=c