Re: How is this collection called?
From: Michael Mendelsohn <keine.Werbung.1300_at_michael.mendelsohn.de>
Date: Tue, 30 Mar 2004 11:40:59 +0200
Message-ID: <406940AB.883662FF_at_michael.mendelsohn.de>
Date: Tue, 30 Mar 2004 11:40:59 +0200
Message-ID: <406940AB.883662FF_at_michael.mendelsohn.de>
Mikito Harakiri schrieb:
> Let '*' be binary aggregation operator.
> Then, sets obey the following laws:
> a*a=a
> a*b=b*a
> a*(b*c)=(a*b)*c
> Lists:
> a*a!=a
> a*b!=b*a
> a*(b*c)=(a*b)*c
> What collection type meets
> a*a!=a
> a*b!=b*a
> a*(b*c)!=(a*b)*c
>
> ?
Michael
-- Feel the stare of my burning hamster and stop smoking!Received on Tue Mar 30 2004 - 11:40:59 CEST