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 Yearling
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Feb
11
asked An intuition connected with Heyting implication
Jan
13
revised Compactness related property of topological spaces
added 423 characters in body
Jan
12
comment Compactness related property of topological spaces
I've added motivation from my question.
Jan
12
revised Compactness related property of topological spaces
added 632 characters in body
Jan
12
asked Compactness related property of topological spaces
Jan
12
accepted T3 space which does not satisfy certain condition
Jan
11
revised T3 space which does not satisfy certain condition
edited body
Jan
11
revised T3 space which does not satisfy certain condition
deleted 2 characters in body
Jan
10
asked T3 space which does not satisfy certain condition
Dec
14
comment Triangles in spherical/elliptical geometry
Well, this is the point I presume :). Since the complement of the intersection of three hemi-spheres is not an intersection of any three hemi-spheres (or at least I suppose it cannot be).
Dec
14
comment Triangles in spherical/elliptical geometry
The difference is that in the Euclidean space the complement of a triangle is unbounded.
Dec
14
asked Triangles in spherical/elliptical geometry
Nov
10
comment Functional separation of regular open sets of a topological space
Could you please develop slightly 2nd point? I am not sure if I understand it properly.
Nov
8
accepted Functional separation of regular open sets of a topological space
Nov
8
awarded  Yearling
Nov
8
awarded  Critic
Nov
8
comment Functional separation of regular open sets of a topological space
Yes, it is the standard topological closure.
Nov
8
comment Functional separation of regular open sets of a topological space
If $x\in-(C\cdot D)$, then $x\in(-C+-D)$ from which you cannot infer that $x\in-C$ or $x\in-D$. To be more precise, if $x\in-(C\cdot D)$, then $x\in\mathrm{Cl}(-C)$ or $x\in\mathrm{Cl}(-D)$, yet the sets I consider are not closed in general. Or am I missing something?
Nov
8
revised Functional separation of regular open sets of a topological space
edited body
Nov
8
asked Functional separation of regular open sets of a topological space