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Kugutsu-o
  • Member for 7 years, 4 months
  • Last seen more than 2 years ago
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Is this a valid definition of Euclidean geometry?
You were done before you answered it..
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Is this a valid definition of Euclidean geometry?
One more on the more obvious side, shouldn't a line still be, albeit a degenerate, case of a Euclidean space on which one can do Euclidean geometry? That's why I didn't have A1
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Is this a valid definition of Euclidean geometry?
There are a few more subtle things that are effectively different.
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Is this a valid definition of Euclidean geometry?
@moishe kohan I don't see anything missing from your reinterpretation except from the A3. Isn't this supposed to be a version of the playfairs axiom? I mean, and maybe someone said this, my question could (almost) be stated as "is every geodesic complete metric space with playfairs axiom an euclidian space"?
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Is this a valid definition of Euclidean geometry?
I will take note on the substantially of the comments, but it wasn't and isn't my intention really to dismiss anyone or go into arguments.
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Is this a valid definition of Euclidean geometry?
I did point out every time I patched or updated something and asked if it could be pardoned in the interest of the question. I still think it wasn't changed much..
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Is this a valid definition of Euclidean geometry?
I only said to moishe kohan that saying this question is not research level and than answering it by a research level text reference seems contradictory.
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Is this a valid definition of Euclidean geometry?
I mean how would you approach a this, if I see a detail that needs to be polished what do I do?
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Is this a valid definition of Euclidean geometry?
I could have expanded on The angle measure, but it would be In vain since as you said the question is dismissed.
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Is this a valid definition of Euclidean geometry?
I appreciate each comment, no matter how parts of some even yours seem more than silly.
revised
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Is this a valid definition of Euclidean geometry?
I don't get the toxicity.. You give up cause you're wrong, I hate to say it but it's true.. Why are you being so dismissive...
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Is this a valid definition of Euclidean geometry?
You said geodesics here have only 2 points, that's what the continuity axiom negates and that's what you said is wrong with 3 by itself, that that it allows non unique geodesics..
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Is this a valid definition of Euclidean geometry?
Even originally I had one additional axiom for continuity, as I posted I realised it could have been stated in a better way but then there were already comments and I didn't want to change the question too much.
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Is this a valid definition of Euclidean geometry?
That counter example didn't work even with the original formulation.
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Is this a valid definition of Euclidean geometry?
But that's OK, it's a good answer attempt I'm not sure yet if it's correct.
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Is this a valid definition of Euclidean geometry?
So why I said you answer is to involved for math SE is because you require i know what an Lp space is and then refer to a graduate to research level paper. So that by definition then is an answer on that level so how then is the question not provided the answer is suitable for it?
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Is this a valid definition of Euclidean geometry?
It's not just about complexity. This is not a very complex question. But it doesn't mean it can't still be quite subtle.