Re: atomic
From: paul c <toledobythesea_at_ooyah.ac>
Date: Fri, 02 Nov 2007 15:40:07 GMT
Message-ID: <rxHWi.169305$th2.151405_at_pd7urf3no>
>> "paul c" <toledobythesea_at_ooyah.ac> wrote in message
>> news:08HWi.167005$Da.137917_at_pd7urf1no...
>>> If I may dodge the ordering question for now and continue with my
>>> casual graphics, how could a relation like the following be useful?
>>> (assuming one pizza per order and ignoring pizza size)
>>>
>>> PizzasOrdered:
>>>
>>> Order {Toppings}
>>> _____ __________
>>>
>>> 1 {Tomato, Sausage, Cheese}
>>> 1 {}
>>
>> If the predicate is something like "The kitchen is currently cooking
>> <order> pizzas with <toppings>", where <order> is a count. (i.e.
>> someone has ordered just a crust--my son would, and someone else has
>> ordered a proper pizza.) I could no doubt invent other possible
>> interpretations. My question is, what predicate did you intend me to
>> use when answering your question?
>
> I think your predicate is fine. ...
Date: Fri, 02 Nov 2007 15:40:07 GMT
Message-ID: <rxHWi.169305$th2.151405_at_pd7urf3no>
paul c wrote:
> Roy Hann wrote:
>> "paul c" <toledobythesea_at_ooyah.ac> wrote in message
>> news:08HWi.167005$Da.137917_at_pd7urf1no...
>>> If I may dodge the ordering question for now and continue with my
>>> casual graphics, how could a relation like the following be useful?
>>> (assuming one pizza per order and ignoring pizza size)
>>>
>>> PizzasOrdered:
>>>
>>> Order {Toppings}
>>> _____ __________
>>>
>>> 1 {Tomato, Sausage, Cheese}
>>> 1 {}
>>
>> If the predicate is something like "The kitchen is currently cooking
>> <order> pizzas with <toppings>", where <order> is a count. (i.e.
>> someone has ordered just a crust--my son would, and someone else has
>> ordered a proper pizza.) I could no doubt invent other possible
>> interpretations. My question is, what predicate did you intend me to
>> use when answering your question?
>
> I think your predicate is fine. ...
Sorry, let me take that first sentence back as I didn't notice at first
that you are called <order> a count. So I guess I should say the
predicate I had in mind was "the pizza for order <order> has the set of
toppings <toppings>.
I still wonder why one would want both tuples to apply to the same pizza.