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if-A-B-0-how-to-prove-A-0-or-B-0-




Question Number 116767 by bounhome last updated on 06/Oct/20
if  A×B=0 how to prove A=0 or B=0
ifA×B=0howtoproveA=0orB=0
Commented by Bird last updated on 07/Oct/20
not correct in Z/2Z
notcorrectinZ/2Z

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