Arithmetic of Infinite Limits [closed]












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I'm going over properties of limits for series and I'm having trouble proving Arithmetic of infinite series. I know what I'm supposed to do but I can't use standard tricks I'm used to like triangle inequality. Do you have any tips for re - adjusting the epsilon-proofs into M-N proofs?










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closed as off-topic by RRL, Cesareo, Leucippus, Lord Shark the Unknown, KReiser Dec 25 '18 at 7:03


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – RRL, Cesareo, Leucippus

If this question can be reworded to fit the rules in the help center, please edit the question.












  • 1




    $begingroup$
    It's all about neighborhoods: a neighborhood of a point $x$ on the line (by def.) always contains an interval $(x-varepsilon, x+varepsilon)$. These are then replaced to the neighborhoods of $+infty$ which always contain a semiline $(M, infty)$..
    $endgroup$
    – Berci
    Dec 24 '18 at 9:58
















1












$begingroup$


I'm going over properties of limits for series and I'm having trouble proving Arithmetic of infinite series. I know what I'm supposed to do but I can't use standard tricks I'm used to like triangle inequality. Do you have any tips for re - adjusting the epsilon-proofs into M-N proofs?










share|cite|improve this question











$endgroup$



closed as off-topic by RRL, Cesareo, Leucippus, Lord Shark the Unknown, KReiser Dec 25 '18 at 7:03


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – RRL, Cesareo, Leucippus

If this question can be reworded to fit the rules in the help center, please edit the question.












  • 1




    $begingroup$
    It's all about neighborhoods: a neighborhood of a point $x$ on the line (by def.) always contains an interval $(x-varepsilon, x+varepsilon)$. These are then replaced to the neighborhoods of $+infty$ which always contain a semiline $(M, infty)$..
    $endgroup$
    – Berci
    Dec 24 '18 at 9:58














1












1








1





$begingroup$


I'm going over properties of limits for series and I'm having trouble proving Arithmetic of infinite series. I know what I'm supposed to do but I can't use standard tricks I'm used to like triangle inequality. Do you have any tips for re - adjusting the epsilon-proofs into M-N proofs?










share|cite|improve this question











$endgroup$




I'm going over properties of limits for series and I'm having trouble proving Arithmetic of infinite series. I know what I'm supposed to do but I can't use standard tricks I'm used to like triangle inequality. Do you have any tips for re - adjusting the epsilon-proofs into M-N proofs?







sequences-and-series limits analysis






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share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Dec 24 '18 at 13:10







I.B.

















asked Dec 24 '18 at 9:39









I.B.I.B.

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113




closed as off-topic by RRL, Cesareo, Leucippus, Lord Shark the Unknown, KReiser Dec 25 '18 at 7:03


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – RRL, Cesareo, Leucippus

If this question can be reworded to fit the rules in the help center, please edit the question.







closed as off-topic by RRL, Cesareo, Leucippus, Lord Shark the Unknown, KReiser Dec 25 '18 at 7:03


This question appears to be off-topic. The users who voted to close gave this specific reason:


  • "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – RRL, Cesareo, Leucippus

If this question can be reworded to fit the rules in the help center, please edit the question.








  • 1




    $begingroup$
    It's all about neighborhoods: a neighborhood of a point $x$ on the line (by def.) always contains an interval $(x-varepsilon, x+varepsilon)$. These are then replaced to the neighborhoods of $+infty$ which always contain a semiline $(M, infty)$..
    $endgroup$
    – Berci
    Dec 24 '18 at 9:58














  • 1




    $begingroup$
    It's all about neighborhoods: a neighborhood of a point $x$ on the line (by def.) always contains an interval $(x-varepsilon, x+varepsilon)$. These are then replaced to the neighborhoods of $+infty$ which always contain a semiline $(M, infty)$..
    $endgroup$
    – Berci
    Dec 24 '18 at 9:58








1




1




$begingroup$
It's all about neighborhoods: a neighborhood of a point $x$ on the line (by def.) always contains an interval $(x-varepsilon, x+varepsilon)$. These are then replaced to the neighborhoods of $+infty$ which always contain a semiline $(M, infty)$..
$endgroup$
– Berci
Dec 24 '18 at 9:58




$begingroup$
It's all about neighborhoods: a neighborhood of a point $x$ on the line (by def.) always contains an interval $(x-varepsilon, x+varepsilon)$. These are then replaced to the neighborhoods of $+infty$ which always contain a semiline $(M, infty)$..
$endgroup$
– Berci
Dec 24 '18 at 9:58










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