From: Ross A. Finlayson (extropy@apexinternetsoftware.com)
Date: Tue Nov 19 2002 - 03:18:10 MST
On Monday, November 18, 2002, at 09:15 PM, gts wrote:
> If event A causes event B then event A certainly does occur before event
> B in time, unless and until someone proves that faster than light
> communications are possible.
>
> -gts
>
That is obviously not true. If A-> B and C-> B, then either C or A
could be true and B would be true. If A and/or C is true then B is
true. It could be that B (itself) or D-> B and D, in which case A and C
could each be false while B is true.
If A-> B, and A, then B, that's the definition of A -> B, A implies B.
Ross
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