Theory and History of Ontology

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My other websites:

History of Logic

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Theory and History of Ontology by Raul Corazzon | e-mail:


Ebook Version of "Theory and History of Ontology"

About this Site

This version of "Theory and History of Ontology" can also be downloaded as an ebook that can be read offline, stored on a pen drive, sent to a friend by e-mail, etc.

Pages can be read in sequence, starting from the beginning or end of the website, or by consulting the table of contents at the beginning (menu "Contents"), the detailed indexes at the end (menu "Last"), or the chapter index (menu "Section"); a "Search" option is also available.

I will update the e-book every time that the main website will change.

The e-book version does not contain the Essays in PDF format (that can be downloaded separately: see the Index of PDF Essays) and the external links that are available on the main version.

Main Site and Mirror Sites

Theory and History of Ontology, created April 13, 2000 at the address, moved August 13th 2010 to a new address:; a mobile version (with a different menu) is available when the screen resolution is less than 480 x 500 pixels.

The site contains more than 15,000 bibliographic references; it is best viewed with a recent version of one of the following browsers: Chrome, Edge, Firefox, Internet Explorer, Maxthon, Opera, Safari, UC Browser.

Please note that only Internet Explorer version 11 is supported by Microsoft after January 12, 2016.

There are also sections, currently under development, for Italian and French readers (see Pages in Language other than English), that will contain bibliographical information and references to works published in these languages.

For readers with old browsers another website with an easier menu is available:

Another website is History of Logic from Aristotle to Gödel; the version for old browsers is available at History of Logic. Mirror Site

How to Cite This Website

If you want to cite or link a page of my site please use the main address because the mirror sites will not be indexed by the Search Engines to avoid duplicated content.