• To: xml-dev@l...
• Subject: Re: limits of the generic
• From: Joe English <jenglish@f...>
• Date: Mon, 30 Sep 2002 12:38:26 -0700
• In-reply-to: <026b01c2689a$20220d30$6400a8c0@JMG>
• References: <026b01c2689a$20220d30$6400a8c0@JMG> <200209282248.SAA07986@m...> <170201240678.20020929000004@j...> <013901c267e6$fbd22ef0$6400a8c0@JMG> <116272975257.20020929195541@j...> <016501c267ef$c36b29a0$6400a8c0@JMG> <30283490097.20020929225056@j...> <01a901c26810$471b1d80$6400a8c0@JMG> <45332506278.20020930122754@j...>

Jeff Greif wrote:
>
> I think you've hit the nub of this issue.  We expect '+' to be commutative,
> associative, and have additive inverses.


Except for people who also expect things like

	$greeting = "Hello" + "World";

to work :-)

But I like where you're going with this -- coming up with
a list of algebraic properties that the various operations
on dates, times, and durations should satisfy is a very
good way to proceed.


--Joe English

  jenglish@f...

• References:
  • Re: limits of the generic
    • From: "Jeff Greif" <jgreif@a...>
  • Re: limits of the generic
    • From: John Cowan <jcowan@r...>
  • Re: limits of the generic
    • From: Jeni Tennison <jeni@j...>
  • Re: limits of the generic
    • From: "Jeff Greif" <jgreif@a...>
  • Re: limits of the generic
    • From: Jeni Tennison <jeni@j...>
  • Re: limits of the generic
    • From: "Jeff Greif" <jgreif@a...>
  • Re: limits of the generic
    • From: Jeni Tennison <jeni@j...>
  • Re: limits of the generic
    • From: "Jeff Greif" <jgreif@a...>
  • Re: limits of the generic
    • From: Jeni Tennison <jeni@j...>

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