This is almost certainly my economics rather than CS background showing, but
what on earth does this all mean?
--
Niall Litchfield
Oracle DBA
Audit Commission UK
"Sted Alana" <Sted_Alana_at_hotmail.com> wrote in message
news:3ce7249a$1_1_at_news.iprimus.com.au...
> given R (A,B,C,D,E,F)
>
> and F:
> 1. A--> BC
> 2. B--> A
> 3. C --> D
> 4. AE --> F
>
> compute {B,E}+ to prove that BE --> DF
>
> My Ans: {B,E}+ = {B,E}+ using 1.
> = {A,B,E}+ using 2.
> = {A,B,E}+ using 3
> = {A,B,E,F} using 4.
>
> thus, BE =/= DF
>
> but if u start at 2. u get a different answer {ABCDEF}, which proves the
> above.
>
> Am I missing something? I think my logicis badly wrong.
>
> --
> N e w s N e t C u s t o m e r
> E - m a i l : sted.alana_at_hotmail.com
>
>
>
>
>
>
Received on Sun May 19 2002 - 03:10:28 CDT
