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\begin{document}

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\section*{Hermann Cohen}

\hypertarget{context}{}\subsubsection*{{Context}}\label{context}

\hypertarget{philosophy}{}\paragraph*{{Philosophy}}\label{philosophy}

[[!include philosophy - contents]]

\hypertarget{contents}{}\section*{{Contents}}\label{contents}

\noindent\hyperlink{related_entries}{Related entries}\dotfill \pageref*{related_entries} \linebreak
\noindent\hyperlink{links}{Links}\dotfill \pageref*{links} \linebreak
\noindent\hyperlink{references}{References}\dotfill \pageref*{references} \linebreak


\textbf{Hermann Cohen} (1842-1918) was a German Philosopher of Jewish origin. He was one of the main protagonists of the \emph{Marburg school of neo-Kantianism} together with \emph{Paul Natorp} and \emph{[[Ernst Cassirer]]}.

Cohen's \emph{`\hyperlink{Cohen71}{Kants Theorie der Erfahrung}'} (1871) is widely viewed as a founding document of \textbf{neo-Kantianism}, the `return to Kant' (O. Liebmann 1865), that dominated German academic philosophy until the 1920s.

The second edition of 1883 contains a famous exegesis of the `principles of anticipations of perceptions' from Kant's `Kritik der reinen Vernunft' where Cohen proposes to identify Kant's \emph{intensive quantities} of consciousness with [[infinitesimals]] in a mathematical sense which serve as a principle on which the reality (of all perceptions) is based. (For more on this main work see the introduction \hyperlink{Edel87}{Edel (1987)}.)

\emph{`Das Prinzip der Infinitesimal-Methode und seine Geschichte'} (\hyperlink{Cohen83}{Cohen 1883}) seeks to corroborate this programmatic transcendental-philosophical interpretation of the `generation of reality from the inifinitesimally small' in the natural sciences by a detailed discussion of the historical development of the concept of continuity or [[infinitesimal objects]] in mathematics and physics. (See \hyperlink{KM13}{Katz-Mormann (2013)} for the role that these ideas have played in the Marburg school.)

Cohen's views on the role of continuity have affinities with Hegelianism (see at \emph{[[Science of Logic]]}) and related ideas by [[Charles Sanders Peirce|C. S. Peirce]] and may be viewed as philosophical complement to [[F.W. Lawvere]]`s concept of [[infinitesimal generation]] for [[cohesive toposes]] (although the latter explicitly rejected the idealist idea of generation of reality from pure thought).

\hypertarget{related_entries}{}\subsection*{{Related entries}}\label{related_entries}

\begin{itemize}%
\item [[cohesion]]
\item [[synthetic differential geometry]]
\item [[infinitesimal]]
\item [[William Lawvere]]
\item [[Ernst Cassirer]]
\item [[Charles Sanders Peirce]]

\end{itemize}
\hypertarget{links}{}\subsection*{{Links}}\label{links}

\begin{itemize}%
\item \href{http://plato.stanford.edu/entries/cohen/}{Stanford Encyclopedia of Philosophy entry}
\item \href{http://de.wikipedia.org/wiki/Hermann_Cohen}{Wikipedia entry (German)}
\item \href{http://en.wikipedia.org/wiki/Hermann_Cohen}{Wikipedia entry}
\item \href{http://www.geert-edel.de/}{Homepage of G. Edel}

\end{itemize}
Most of Cohen's writings in their German original are digitally available via

\begin{itemize}%
\item \href{https://de.wikisource.org/wiki/Hermann_Cohen}{Wikisource entry (German)}

\end{itemize}
\hypertarget{references}{}\subsection*{{References}}\label{references}

\begin{itemize}%
\item H. Cohen, \emph{Kants Theorie der Erfahrung} , D\"u{}mmler Berlin 1871. (strongly revised editions in 1883 and 1918)


\item H. Cohen, \emph{Das Prinzip der Infinitesimal-Methode und seine Geschichte} , Berlin 1883.


\item H. Cohen, \emph{Logik der Reinen Erkenntnis} , Berlin 1902.


\item G. Edel, \emph{Einleitung zu `Herman Cohen: Kants Theorie der Erfahrung'} , pp.8-59 in Cohen, \emph{Werke 1} , Olms Hildesheim 1987. (\href{http://www.geert-edel.de/Texte/Ed1.pdf}{preprint})


\item G. Edel, \emph{Hermann Cohen und die analytische Philosophie der Gegenwart} , pp.179-203 in R. Brandt, F. Orlik (eds.), \emph{Philosophisches Denken -- Politisches Wirken. Hermann Cohen Kolloquium Marburg 1992}, Olms Hildesheim 1993. (\href{http://www.geert-edel.de/Texte/Text4.pdf}{preprint})


\item [[Gottlob Frege|G. Frege]], \emph{Rezension von: \hyperlink{Cohen83}{Cohen 1883}}, Z.Phil.Phil.Kr. \textbf{87} (1885) pp.324-329, reprinted on pp.99-102 in Frege, \emph{Kleine Schriften} , Olms Hildesheim 1990.


\item H.-G. Gadamer, \emph{Festrede zum 100. Geburtstag von Paul Natorp gehalten am 24.1.1954} , pp.XI-XVII in Natorp, \emph{Philosophische Systematik} , Meiner Hamburg 1958.


\item M. G. Katz, T. Mormann, \emph{Infinitesimals as an issue in neo-Kantian philosophy of science} , arXiv:1304.1027v1 (2013) . (\href{http://arxiv.org/pdf/1304.1027v1}{pdf})


\item [[F. W. Lawvere]], \emph{Toposes of Laws of Motion} , Talk Montreal 1997.


\item [[Bertrand Russell| B. Russell]] , \emph{The Principles of Mathematics} , Routledge London 19921903/1937$^2$. (ch.XLI)



\end{itemize}
category:people



\end{document}