Is the set $frac x^2 /(1+x^2) x$ connected in $mathbb R$? The 2019 Stack Overflow Developer Survey Results Are Inproving a set is not path-connectedThe set $A=(x, y)in mathbbR^2:$ is connectedHow to distinguish a connected set or a disconnected set?Connected components of a given spaceIs the following set connected?Is the closure of an open connected set polygonally connected?Countable set (discrete) function continuous?The graph of $f$ is a connected subset of $mathbbR^2$.Is the set path-connected?Suppose that the sets $A_1,A_2 subset mathbbR^n $ are connected and that they are not disjoint. Prove that $A_1 cup A_2$ is connected.

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Is the set $frac x^2 /(1+x^2) x$ connected in $mathbb R$?



The 2019 Stack Overflow Developer Survey Results Are Inproving a set is not path-connectedThe set $A=$ is connectedHow to distinguish a connected set or a disconnected set?Connected components of a given spaceIs the following set connected?Is the closure of an open connected set polygonally connected?Countable set (discrete) function continuous?The graph of $f$ is a connected subset of $mathbbR^2$.Is the set path-connected?Suppose that the sets $A_1,A_2 subset mathbbR^n $ are connected and that they are not disjoint. Prove that $A_1 cup A_2$ is connected.










0












$begingroup$


The set lies in the interval $[0,1)$ with points in $mathbb Q$ so it becomes a subset of $mathbb Q$, the former being not connected and so the set also becomes disconnected?










share|cite|improve this question











$endgroup$











  • $begingroup$
    Connectedness is for sets. You are asking if a function is connected.
    $endgroup$
    – Kavi Rama Murthy
    Mar 24 at 5:59










  • $begingroup$
    Is $x$ a positive integer? Are you asking if the range of the function is connected?
    $endgroup$
    – Kavi Rama Murthy
    Mar 24 at 6:01










  • $begingroup$
    Very confusing. Edit.
    $endgroup$
    – Martín-Blas Pérez Pinilla
    Mar 24 at 14:57










  • $begingroup$
    $frac x^2 /(1+x^2) x$ is a formula, not a set. Before we can answer your question, you need to explain exactly what set you are talking about.
    $endgroup$
    – Paul Sinclair
    Mar 24 at 15:49















0












$begingroup$


The set lies in the interval $[0,1)$ with points in $mathbb Q$ so it becomes a subset of $mathbb Q$, the former being not connected and so the set also becomes disconnected?










share|cite|improve this question











$endgroup$











  • $begingroup$
    Connectedness is for sets. You are asking if a function is connected.
    $endgroup$
    – Kavi Rama Murthy
    Mar 24 at 5:59










  • $begingroup$
    Is $x$ a positive integer? Are you asking if the range of the function is connected?
    $endgroup$
    – Kavi Rama Murthy
    Mar 24 at 6:01










  • $begingroup$
    Very confusing. Edit.
    $endgroup$
    – Martín-Blas Pérez Pinilla
    Mar 24 at 14:57










  • $begingroup$
    $frac x^2 /(1+x^2) x$ is a formula, not a set. Before we can answer your question, you need to explain exactly what set you are talking about.
    $endgroup$
    – Paul Sinclair
    Mar 24 at 15:49













0












0








0





$begingroup$


The set lies in the interval $[0,1)$ with points in $mathbb Q$ so it becomes a subset of $mathbb Q$, the former being not connected and so the set also becomes disconnected?










share|cite|improve this question











$endgroup$




The set lies in the interval $[0,1)$ with points in $mathbb Q$ so it becomes a subset of $mathbb Q$, the former being not connected and so the set also becomes disconnected?







analysis






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Mar 24 at 5:45









Rócherz

3,0263823




3,0263823










asked Mar 24 at 5:40









Van ThanaVan Thana

1




1











  • $begingroup$
    Connectedness is for sets. You are asking if a function is connected.
    $endgroup$
    – Kavi Rama Murthy
    Mar 24 at 5:59










  • $begingroup$
    Is $x$ a positive integer? Are you asking if the range of the function is connected?
    $endgroup$
    – Kavi Rama Murthy
    Mar 24 at 6:01










  • $begingroup$
    Very confusing. Edit.
    $endgroup$
    – Martín-Blas Pérez Pinilla
    Mar 24 at 14:57










  • $begingroup$
    $frac x^2 /(1+x^2) x$ is a formula, not a set. Before we can answer your question, you need to explain exactly what set you are talking about.
    $endgroup$
    – Paul Sinclair
    Mar 24 at 15:49
















  • $begingroup$
    Connectedness is for sets. You are asking if a function is connected.
    $endgroup$
    – Kavi Rama Murthy
    Mar 24 at 5:59










  • $begingroup$
    Is $x$ a positive integer? Are you asking if the range of the function is connected?
    $endgroup$
    – Kavi Rama Murthy
    Mar 24 at 6:01










  • $begingroup$
    Very confusing. Edit.
    $endgroup$
    – Martín-Blas Pérez Pinilla
    Mar 24 at 14:57










  • $begingroup$
    $frac x^2 /(1+x^2) x$ is a formula, not a set. Before we can answer your question, you need to explain exactly what set you are talking about.
    $endgroup$
    – Paul Sinclair
    Mar 24 at 15:49















$begingroup$
Connectedness is for sets. You are asking if a function is connected.
$endgroup$
– Kavi Rama Murthy
Mar 24 at 5:59




$begingroup$
Connectedness is for sets. You are asking if a function is connected.
$endgroup$
– Kavi Rama Murthy
Mar 24 at 5:59












$begingroup$
Is $x$ a positive integer? Are you asking if the range of the function is connected?
$endgroup$
– Kavi Rama Murthy
Mar 24 at 6:01




$begingroup$
Is $x$ a positive integer? Are you asking if the range of the function is connected?
$endgroup$
– Kavi Rama Murthy
Mar 24 at 6:01












$begingroup$
Very confusing. Edit.
$endgroup$
– Martín-Blas Pérez Pinilla
Mar 24 at 14:57




$begingroup$
Very confusing. Edit.
$endgroup$
– Martín-Blas Pérez Pinilla
Mar 24 at 14:57












$begingroup$
$frac x^2 /(1+x^2) x$ is a formula, not a set. Before we can answer your question, you need to explain exactly what set you are talking about.
$endgroup$
– Paul Sinclair
Mar 24 at 15:49




$begingroup$
$frac x^2 /(1+x^2) x$ is a formula, not a set. Before we can answer your question, you need to explain exactly what set you are talking about.
$endgroup$
– Paul Sinclair
Mar 24 at 15:49










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