Re: multiple.....

From: mina_world (mina_world_at_hanmail.net)
Date: 12/30/04 

Date: Fri, 31 Dec 2004 00:26:49 +0900

"Jose Carlos Santos" <jcsantos@fc.up.pt> wrote in message
news:33ik9nF40u8tmU1@individual.net...
> On 30-12-2004 14:50, mina_world wrote:
>
> > a,b,c,d,u is integers.
> >
> > if ac, bc+ad, bd is multiple of u,
> > then bc, ad is multiple of u.
>
> This is not true. Take a = c = 2, b = d = 1, and u = 4.
>

but bd=1 is not multiple of u=4.