Proof

[marerick98]

Hi Lads,

i've got a question i can't answer for my homework. I need to proof that.

if there is a Element a in /n\{0} is a zero-divisor , then n is a prime number.

how do i write a proof of this?

 

[Harry_the_cat]

Hi Lads,

Just sayin'. Females can do maths too!!

 

[Steven G]

Can we see what you have tried? Maybe you tell us what you have trued? We do not proofs for students on this website as we prefer they do it themselves with hints from us.

If you really have no idea how to start then can you at least define what it means for a to be in

_/n

_\{0} and what a zero divisor is?

 

[marerick98]

figured it out already! thanks every1!