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Topic: [HM] question about term "normal"
Replies: 13   Last Post: Dec 7, 2006 4:19 PM

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Bruand Francois

Posts: 2
Registered: 12/3/04
Re: [HM] Cauchy
Posted: Dec 7, 2006 3:17 PM
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L'expression française "solution de continuité" est un faux ami et n'a pas
le sens auquel on pourrait s'attendre. Elle provient de la chirurgie et
a le sens d'interruption de la continuité ou de séparation. Il s'agit donc
en fait d'une discontinuité !

François Bruand, Yverdon-les-Bains (Suisse)

----- Original Message -----
From: "Gunnar Berg" <>
To: <>
Sent: Tuesday, November 14, 2006 4:52 PM
Subject: [HM] Cauchy

> Dear all.
> In perusing Cauchys "Cours d'analyse" (1821) I have come across the
> following (p.35):
> "Enfin, lorsqu'un fonction f(x) cesse d'etre continue dans le voisinage
> d'une valeur particuliere de la variable x, on dit qu'elle devient
> alors discontinue, et qu'il y a pour cette valeur particuliere
> solution de continuite."
> What puzzles me is the last phrase - "solution de continuite" -
> I simply cannot make any sense of it. What can Augustin-Louis mean?
> I look forward to hear from those whose knowledge of Cauchy and his
> times are more profound than mine.
> From Uppsala, deep in the gloom of November.
> Gunnar Berg

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