Soundness of Calculus?












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In this wikipedia article. It talks about the "soundness of calculus", but it seems to talk about soundness in an informal sense and how analysis/calculus was not very rigorous and not the soundness in logic it linked to.



My questions is, assuming the article didn't make a mistake, how was Weierstrass's contribution in "modernizing analysis" related to the "soundness of calculus"?










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  • $begingroup$
    Yrs, it is quite informal; but "soundness" means consistent+true axioms.
    $endgroup$
    – Mauro ALLEGRANZA
    Dec 4 '18 at 17:38










  • $begingroup$
    The issue is with the use of infinitesimals in the calculus with the well-known critique about using "vanishing quantities" in operations, that amounts to dividing by zero. Obviously, dividing by zero is an "unsound" operation.
    $endgroup$
    – Mauro ALLEGRANZA
    Dec 4 '18 at 18:34










  • $begingroup$
    @Mauro ALLEGRANZA if that's what they meant by soundness I guess this more or less answers my question
    $endgroup$
    – SpooFwen
    Dec 4 '18 at 19:17
















0












$begingroup$


In this wikipedia article. It talks about the "soundness of calculus", but it seems to talk about soundness in an informal sense and how analysis/calculus was not very rigorous and not the soundness in logic it linked to.



My questions is, assuming the article didn't make a mistake, how was Weierstrass's contribution in "modernizing analysis" related to the "soundness of calculus"?










share|cite|improve this question











$endgroup$












  • $begingroup$
    Yrs, it is quite informal; but "soundness" means consistent+true axioms.
    $endgroup$
    – Mauro ALLEGRANZA
    Dec 4 '18 at 17:38










  • $begingroup$
    The issue is with the use of infinitesimals in the calculus with the well-known critique about using "vanishing quantities" in operations, that amounts to dividing by zero. Obviously, dividing by zero is an "unsound" operation.
    $endgroup$
    – Mauro ALLEGRANZA
    Dec 4 '18 at 18:34










  • $begingroup$
    @Mauro ALLEGRANZA if that's what they meant by soundness I guess this more or less answers my question
    $endgroup$
    – SpooFwen
    Dec 4 '18 at 19:17














0












0








0





$begingroup$


In this wikipedia article. It talks about the "soundness of calculus", but it seems to talk about soundness in an informal sense and how analysis/calculus was not very rigorous and not the soundness in logic it linked to.



My questions is, assuming the article didn't make a mistake, how was Weierstrass's contribution in "modernizing analysis" related to the "soundness of calculus"?










share|cite|improve this question











$endgroup$




In this wikipedia article. It talks about the "soundness of calculus", but it seems to talk about soundness in an informal sense and how analysis/calculus was not very rigorous and not the soundness in logic it linked to.



My questions is, assuming the article didn't make a mistake, how was Weierstrass's contribution in "modernizing analysis" related to the "soundness of calculus"?







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share|cite|improve this question















share|cite|improve this question













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edited Dec 4 '18 at 17:16









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asked Dec 4 '18 at 16:47









SpooFwenSpooFwen

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  • $begingroup$
    Yrs, it is quite informal; but "soundness" means consistent+true axioms.
    $endgroup$
    – Mauro ALLEGRANZA
    Dec 4 '18 at 17:38










  • $begingroup$
    The issue is with the use of infinitesimals in the calculus with the well-known critique about using "vanishing quantities" in operations, that amounts to dividing by zero. Obviously, dividing by zero is an "unsound" operation.
    $endgroup$
    – Mauro ALLEGRANZA
    Dec 4 '18 at 18:34










  • $begingroup$
    @Mauro ALLEGRANZA if that's what they meant by soundness I guess this more or less answers my question
    $endgroup$
    – SpooFwen
    Dec 4 '18 at 19:17


















  • $begingroup$
    Yrs, it is quite informal; but "soundness" means consistent+true axioms.
    $endgroup$
    – Mauro ALLEGRANZA
    Dec 4 '18 at 17:38










  • $begingroup$
    The issue is with the use of infinitesimals in the calculus with the well-known critique about using "vanishing quantities" in operations, that amounts to dividing by zero. Obviously, dividing by zero is an "unsound" operation.
    $endgroup$
    – Mauro ALLEGRANZA
    Dec 4 '18 at 18:34










  • $begingroup$
    @Mauro ALLEGRANZA if that's what they meant by soundness I guess this more or less answers my question
    $endgroup$
    – SpooFwen
    Dec 4 '18 at 19:17
















$begingroup$
Yrs, it is quite informal; but "soundness" means consistent+true axioms.
$endgroup$
– Mauro ALLEGRANZA
Dec 4 '18 at 17:38




$begingroup$
Yrs, it is quite informal; but "soundness" means consistent+true axioms.
$endgroup$
– Mauro ALLEGRANZA
Dec 4 '18 at 17:38












$begingroup$
The issue is with the use of infinitesimals in the calculus with the well-known critique about using "vanishing quantities" in operations, that amounts to dividing by zero. Obviously, dividing by zero is an "unsound" operation.
$endgroup$
– Mauro ALLEGRANZA
Dec 4 '18 at 18:34




$begingroup$
The issue is with the use of infinitesimals in the calculus with the well-known critique about using "vanishing quantities" in operations, that amounts to dividing by zero. Obviously, dividing by zero is an "unsound" operation.
$endgroup$
– Mauro ALLEGRANZA
Dec 4 '18 at 18:34












$begingroup$
@Mauro ALLEGRANZA if that's what they meant by soundness I guess this more or less answers my question
$endgroup$
– SpooFwen
Dec 4 '18 at 19:17




$begingroup$
@Mauro ALLEGRANZA if that's what they meant by soundness I guess this more or less answers my question
$endgroup$
– SpooFwen
Dec 4 '18 at 19:17










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