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Originally Posted by luckyme
Why I play poker the way I did today depends on the rules of the game in force today. 50 years ago I'd have played differently. 50 years from now I may play differently again. Each time I will be "doing poker".
The fact I am at the game today motivated by a desire to get away from my wife, or influenced by a desire to skip work has nothing to do with the fact that I played the game by the rules in play at the time.
Do you have an argument that contradicts what hoodbhoy is saying?
Yes. You lose sight of what you're talking about.
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But, all said and done, mathematics is mathematics. The bottom line is that a quadratic equation solved by whoever and by whatever means has to give exactly the same solutions.
I agree with the second sentence. The actual results do not change. But under what you have accepted above by "doing poker" taking different forms at different times means that mathematics is not mathematics. He's attempting to create a sub-class of mathematics that is time-independent, which is precisely contrary to the time-dependent nature of our understanding of what the thing actually is.
In order for you to draw a seamless picture of doing poker yesterday, today, and tomorrow that is somehow universal in nature, you've got to limit that which you consider to be poker. There was once a time that there was no such thing as "limit" poker. At that time, such a game would probably not even be considered to be poker, even though it is now. So is it poker? If poker is poker (timeless), then no (because there was a time when it wasn't). But if poker is a time-dependent concept, then yes.
The time-independent sense of mathematics holds appeal because it's neat and pretty, but as I've repeatedly stated as a fundamental point in my position, it's not really all that accurate as a description of what is actually happening.
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Science was done before Kuhn and Quine and will be done after the current crop. The "since time immemorial" view of fields of study is a mythological way of looking at things. Science is done by the current 'rules' of science, personal motivations for the scientist doing it is only that.
Perhaps you're more a hands-on person so I'll try this - we may consider the quality of measurement of a former experiment insufficiently precise to draw the conclusion it did, but if it was done according to the understanding of the rules and the understanding of the universe at the time, then it was 'doing science' at the time. Science done using Newtonian physics did not suddenly become non-science because we'd apply some relativity calcs in there today.
I think you should take a more careful approach here by separating out "motivation" from "influence." The quote you gave didn't really do a good job of this, and neither have you.
Motivation speaks much more to the original cause of the enterprise. Influence is an ongoing effect of guiding the direction of the enterprise. Motivation gets the ball rolling, influence guides where it rolls.
You can say that the motivation for pursuing a particular notion is independent of the result. But it's not possible to say that the result is independent of the things that influenced it.
To take the quotes explicitly:
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It could be argued that Islamic mathematics also had a religious motivation: the need to know precise times for the 5-times daily prayers, the direction of the Qibla, etc.
This points to the originating ideas which started the enterprise of Indian mathematics. But these have no impact on the results.
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From this book one understands in fine detail how the early development of Indian mathematics was influenced by the need to build temples of specific proportions, astrological imperatives, etc.
This points to the fact that the pursuit of specific types of ends led the mathematicians to reach certain types of conclusions. It doesn't matter *WHY* these things were the things that they wanted to accomplish, but these were *THE THINGS* they wanted to accomplish. And therefore, the mathematics that was developed focused on *THESE THINGS*.
To phrase it in a more leadership-oriented context: Two people can work together to accomplish the same goal even if they have different motivations. But it's much more difficult for two people two work together to accomplish completely goals. It will always be possible to find *SOME* commonality in their pursuits that allows them to work in tandem.