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visits member for 2 years, 2 months
seen Nov 3 at 19:38

Oct
14
accepted Can there be a homeomorphism of $[0,1]$ that maps $\mathbb Q$ to the dyadic rationals?
Oct
14
asked Can there be a homeomorphism of $[0,1]$ that maps $\mathbb Q$ to the dyadic rationals?
Oct
14
accepted Help with derivative inside a summation
Oct
10
comment Help with derivative inside a summation
Yes, sorry about that typo.
Oct
10
revised Help with derivative inside a summation
Typo
Oct
10
asked Help with derivative inside a summation
Oct
6
awarded  Critic
Jul
2
awarded  Curious
Mar
31
awarded  Popular Question
Sep
18
awarded  Yearling
Sep
17
comment Let $X$ be compact, separable, metric space. Then every bijection is a homeomorphism?
The problem doesn't state that $f$ is continuous, do you think this is a typo then?
Sep
17
asked Let $X$ be compact, separable, metric space. Then every bijection is a homeomorphism?
Sep
17
accepted If $X$ is separable then is the group of isometries on $X$ separable?
Sep
16
awarded  Nice Question
Sep
11
accepted In a Baire space $X$, if an open set meets a nonmeager set, is the intersection nonmeager?
Sep
11
asked In a Baire space $X$, if an open set meets a nonmeager set, is the intersection nonmeager?
Sep
1
asked If $X$ is separable then is the group of isometries on $X$ separable?
Aug
31
accepted For a metric $d$ on a group $G$, why do $d$ and $d^{-1}$ generate the same topology.
Aug
30
comment For a metric $d$ on a group $G$, why do $d$ and $d^{-1}$ generate the same topology.
It must be a typo then, I will close the question soon. Thank you.
Aug
30
asked For a metric $d$ on a group $G$, why do $d$ and $d^{-1}$ generate the same topology.