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René Descartes
portrayed by
Franz Hals
in 1648.

This site is a platform for providing several information, documentation and downloads regarding several subjects. As well as Descartes' implication "cogito, ergo sum" inspired legions of philosophers and logicians to think about it this site shall also - in a moderate range, of course - stimulate to reflect.

Due to my professional background the focus is on computer science and mathematics. Nevertheless information about other topics, with which I deal also in my job and in a semi-professional manner, shall follow. This may include different languages, literature and physics for example.

"Cogito, ergo sum"

René Descartes mentioned his implication "cogito, ergo sum" (Latin: "I think, therefore I am") in his work Meditationes de prima philosophia (Latin: "meditations on first philosophy"). This statement was the end of his search for an undoubtable true statement. In his eyes he could not doubt that he himself existed, as he was the one doing the doubting in the first place.

The "light refraction on
water surface" by Descartes
is used as this site's logo.

This implication is discussed very controversial. For example the prominent advocate of logical positivism - Rudolf Carnap - saw in Descartes' statement a wrong implication caused by two logical mistakes.

Fact is that this statement caused a lot of thinking. This is the main goal of this site, too.

René Descartes

René Descartes (1596 until 1650) was a French philosopher, physicist and mathematician. In the field of philosphy his works regarding epistemology and his methodological skepticism have to be mentioned. In physics he provided the first law of conservation and the law of refraction, which he found nearly at the same time as the Dutch scientist Willebrord van Roijen Snell. The mathematician Descartes is one of the most important founder of analytical geometry. He has also worked on infinitesimal calculus. His name lives in the Cartesian coordinate system and the Cartesian product.


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