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Show that $X$ is a irreducible topological space.

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#general-topology
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Difficulty in understanding the proof : S must have infinitely many accumulation points.

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#real-analysis #general-topology
187
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Equivalent definition of irreducible topological subspace.

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#general-topology #proof-writing
121
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Nonempty interior is equivalent to the feasibility of set of strict quadratic inequalities. Why?

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#general-topology #decision-problems
60
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What is the formal definition of the set $E^n$?

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#general-topology #notation #nonlinear-optimization
84
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Eilenberg MacLane spaces covering

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#general-topology #algebraic-topology
301
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A question on Weak and Norm topology

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#general-topology #functional-analysis #weak-topology
170
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Contractible neighbourhood of $D^2$

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#general-topology
57
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Examples of Abelian Topological Groups

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#general-topology #fourier-analysis #hilbert-spaces #topological-groups
234
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Help me to visualise limit points of $S$.

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#general-topology #order-topology
167
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Munkres Section 18 Theorem 18.2(e)

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#general-topology #continuity #proof-explanation
1.1k
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Supremum metric on closed subset of continuous functions

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#general-topology #functions #metric-spaces
189
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$D^2$ not topological manifold without boundary

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#general-topology #manifolds
38
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Is it possible to infer bijectivity of a function from an existing function that you know is bijective?

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#general-topology #smooth-manifolds
1.1k
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Proving that a closed set contains a set and its closure.

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#real-analysis #general-topology

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