- #1
Windowmaker
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Homework Statement
Prove: If a|b and b|c then a|c.
Assume a, b and c are integers.
Homework Equations
none
The Attempt at a Solution
If a divides b then that means that there is a
real integer "r" that is ra=b .
and since we assume b divides c then c=bs.
After here I got stuck. I was thinking maybe subsitute b and c for ar and bs, but it doesn't seem to get me anywhere. Thanks in advance.