If f is uniformly continuous on S and has a continuous extension on $overline S$, $tilde f$, then $tilde f$...












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Suppose $f : S to mathbb{R}$ is a uniformly continuous function. Then f has a continuous extension $tilde f : overline{S} to mathbb{R}$. Verify that $tilde f$ is continuous on $overline S$.



I am having trouble solving this problem, any hints would be greatly appreciated.










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    Hint : how is $bar f$ defined on elements of $bar S setminus S$? Use the fact that a uniformly continuous function carries Cauchy sequences to Cauchy sequences.
    – астон вілла олоф мэллбэрг
    Nov 28 at 4:48


















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Suppose $f : S to mathbb{R}$ is a uniformly continuous function. Then f has a continuous extension $tilde f : overline{S} to mathbb{R}$. Verify that $tilde f$ is continuous on $overline S$.



I am having trouble solving this problem, any hints would be greatly appreciated.










share|cite|improve this question


















  • 3




    Hint : how is $bar f$ defined on elements of $bar S setminus S$? Use the fact that a uniformly continuous function carries Cauchy sequences to Cauchy sequences.
    – астон вілла олоф мэллбэрг
    Nov 28 at 4:48
















0












0








0







Suppose $f : S to mathbb{R}$ is a uniformly continuous function. Then f has a continuous extension $tilde f : overline{S} to mathbb{R}$. Verify that $tilde f$ is continuous on $overline S$.



I am having trouble solving this problem, any hints would be greatly appreciated.










share|cite|improve this question













Suppose $f : S to mathbb{R}$ is a uniformly continuous function. Then f has a continuous extension $tilde f : overline{S} to mathbb{R}$. Verify that $tilde f$ is continuous on $overline S$.



I am having trouble solving this problem, any hints would be greatly appreciated.







real-analysis continuity






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asked Nov 28 at 4:45









Pika_2018

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  • 3




    Hint : how is $bar f$ defined on elements of $bar S setminus S$? Use the fact that a uniformly continuous function carries Cauchy sequences to Cauchy sequences.
    – астон вілла олоф мэллбэрг
    Nov 28 at 4:48
















  • 3




    Hint : how is $bar f$ defined on elements of $bar S setminus S$? Use the fact that a uniformly continuous function carries Cauchy sequences to Cauchy sequences.
    – астон вілла олоф мэллбэрг
    Nov 28 at 4:48










3




3




Hint : how is $bar f$ defined on elements of $bar S setminus S$? Use the fact that a uniformly continuous function carries Cauchy sequences to Cauchy sequences.
– астон вілла олоф мэллбэрг
Nov 28 at 4:48






Hint : how is $bar f$ defined on elements of $bar S setminus S$? Use the fact that a uniformly continuous function carries Cauchy sequences to Cauchy sequences.
– астон вілла олоф мэллбэрг
Nov 28 at 4:48

















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