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615:. So, it is better to say that space, point, geometry, geometric method, geometric space, etc. are what is so called by the community of mathematicians. These terms do not require to be formally defined as they are only used to provide an intuitive support to reasonnings, which otherwise would be more difficult to understand. For example, learning the axioms of vector spaces is easy, but understanding the richness of the concept cannot be done without considering the geometrical aspects of the concept.
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There's a more limited definition of geometry in the context of topology which refers to spaces with some particular kind of rigidifying geometric structure on them such as a metric, Riemannian metric, volume form, algebraic structure, etc. But I don't think that really applies to "Geometry" in the
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The requirement is not that a textbook refers to them as "points" but that there is a relation between elements which provides information about their relative position. In the case of a vector space, the relation is linear (you can specify when two elements lie along the same line). In particular
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Geometry just refers (except in very limited cases in NCG) to any set whose elements we can describe as "points" because in addition the set has some information about how its elements have a "position" relative to each other. "Space" is just a catch all term used to describe such structures, so I
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Those are topics worth mentioning in a new section about projective geometry, but this section is already kind of awkward and overstuffed; I think adding a bunch more to it would be overwhelming. If someone has the time/energy it might be worth doing a more substantial reorganization and ideally
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rewrite of much of it. I don't think that Axioms, Constructions, Symmetry, and
Rotation (among others) make sense as siblings in the same top level section. Overall this page is too focused on making a hierarchical list of random things, and not focused enough on telling a coherent narrative. â
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there is an affine structure (and more, as there is a distinguished point at the "center", another positional relationship). Of course an algebra book will not think of vector spaces as spaces if its goal is to do algebra, but they certainly don't refer to them as "vector sets".
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in which topology is defined entirely using the concept of a point being "close" to a set. This is an example of information about the relative positions of points: If a point x is close to a set A and a point y is not, then x is closer to A than y!
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We hear geometry-related words all the time: âwhatâs your angle?â and âeveryone should eat three square meals a day!â and âshe ran circles around me!â, often with little thought to how fundamental those shapes are to the discipline called geometry.ïżŒ
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topological space ought to be described as geometric, however one might reasonably define the term. While there is, of course, a close connection between topology and geometry, I don't think topology is best described as a subset of geometry.
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I would probably classify
Topology as part of Geometry, although topologies not satisfying the separation axioms might be counter-intuitive. I could probably make an argument for considering it to be a part of Analysis, albeit a weak one.
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are not geometry, and vector spaces over a finite field belong to both areas. There is nothing murky in geometry. Simply, this is a scientific area and not a mathematical term, and, as such, it is not subject to a mathematical definition.
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Closeness is the basis of topology, and is a sort of relative position. However, although although
Tazerenix's definition of points and spaces is ingenious, I am not sure that I completely agree with it, and it is
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What do you mean: removing the existing mentions of these topics or adding a new section? In the second case, what should be its title and where it should be added in the article?
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can refer to mathematical structures that are not geometric, e.g., vector spaces over arbitrary fields. I'm not sure how it should be worded, since the term
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This enlargement of the scope of geometry led to a change of meaning of the word "space", which originally referred to the three-dimensional
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Not so. None of the axioms refer to closeness. There is a derived concept of a point being close to a set, but none of the axioms use it. --
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with a relation between points and sets of "closeness" is equivalent to specifying a topology (precisely, define the closure operator
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Note 3 full citation is Greek and Vedic
Geometry Frits Staal Journal of Indian Philosophy 27 (1/2):105-127 (1999)
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In
Topology there is no concept of relative position. Does that mean that a topological space is not a space.? --
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on
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Should the main ideas section include notions important in
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think its sort of tautological to say
Geometry is the study of Spaces.
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https://en.wikipedia.org/search/?title=Geometry&oldid=1144056819
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1096:X
1090:x
1087:{
1081:)
1078:A
1075:(
1071:l
1068:c
1047:)
1044:X
1041:(
1036:P
1028:)
1025:X
1022:(
1017:P
1012::
1008:l
1005:c
984:X
960:A
940:x
920:A
900:x
878:B
858:A
838:B
832:A
812:X
790:A
770:A
744:)
741:A
738:(
734:l
731:c
710:x
690:A
670:x
652:(
638:(
619:(
600:(
584:(
569:(
545:(
522:(
506:(
491:(
477:(
451:(
409::
405:@
370:.
269::
195:2
191:1
188::
172:·
166:·
158:·
151:·
145:·
139:·
133:·
128:(
58:.
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