Logic Philosophy Spirituality

The Logician website makes available for study, free of charge, the full texts of the following published books by Avi Sion (that is over 400 web pages, or some 1800 letter-sized pages):

FUTURE LOGIC - Categorical and Conditional Deduction and Induction of the Natural, Temporal, Extensional, and Logical Modalities (1990; rev. ed. 1996).

JUDAIC LOGIC - A Formal Analysis of Biblical, Talmudic and Rabbinic Logic (1995; Slatkine ed. 1997).

THE LOGIC OF CAUSATION (1999, 2003 & 2008). Definition, deduction and induction of causation.

Avi Sion, Ph.D. (Philosophy)

LOGICAL AND SPIRITUAL REFLECTIONS (2008). This comprises six shorter works, namely: Hume's Problems with Induction, A Short Critique of Kant's Unreason, In Defense of Aristotle's Laws of Thought, More Meditations, Zen Judaism and No to Sodom.

and OTHER WRITINGS - Four more published books, namely The Laws of Thought, The Self, Ethics and Theology are not displayed as such in this website, being "Thematic Compilations" drawn from the other books; however, approximate links to the various chapters/sections used in them may be found here. Among other things posted here is the political essay Logic in Defense of Zionism.

Please read the Copyright Notice. The writings published in TheLogician.net have all been copyrighted by their author at different times, and are thus under the full protection of international and pan-American copyright conventions.

The Logician now has a secure online BOOKSHOP, where paperback editions of all these books, and publications derived from them, can be purchased (far more cheaply than elsewhere). Do visit it! Many people, including me, find it easier to study from a paper book than reading on a computer screen. For the more technical topics, it would seem to me essential. If you would like a hardcopy book and cannot afford it (perhaps because you live in Europe or Asia and shipping charges from the U.S. seem too high), ask your local public or university library to order a copy at this address: http:/stores.lulu.com/thelogicianbooks or give them a copy of the The Logician Bookshop Catalogue.

All published books by Avi Sion can be consulted (in part) through the GOOGLE BOOKS facility.

New! Readers' Comments - readers can now post their comments (and queries) at almost every page of The Logician website. Do respond here! Simply click on the "Comments (#)" hyperlink by the sidebar home button (left, near the top of the page), and an Echo popup (by js-kit.com) will appear. Log in and write your thoughts (or questions) relating to that page or other people's posts there. You can write up to 5000 characters, if you write directly into the comment box or copy-paste from a simple text editor like Notepad. (This service has strong anti-spam protection and bad language filters. It is also post-moderated. Undisciplined users may be banned.)

Other external services: Check out AVI SION'S BLOG, which highlights various discoveries and ideas found in The Logician. You may also post comments at the blog. The LOGIC FORUM is a place where you can publish (free of charge) articles on logic, epistemology and related philosophical or scientific topics. The latter service also has a Guestbook and a Discussion Area to further encourage feedback from you.

If you come across any technical glitch, or any factual mistake or error of reasoning, please do report it and it will be quickly corrected with thanks. Likewise, if you have any other comments or queries you would like me to respond to personally, feel free to write to the following e-mail address: avi-sion@thelogician.net - but preferably use the Readers' Comments facility above described so other readers can partake and benefit.

Machine-made translations of The Logician texts into over forty languages are now available. These are unfortunately of very poor quality, but may be useful to some people. Either click on this hyperlink: Translations, or use the Google translate gadget in the sidebar (left). Once you have translated one page, you can follow the links on it as usual and the subsequent pages will also be automatically translated.

If you find The Logician website interesting and useful, be sure to recommend it to your friends and colleagues! Notice the "Share" gadget placed on every page (on the right side, near the top) to facilitate networking. If you have a website or blog, or are involved in a third-party forum discussion, do insert a link to The Logician in it. The Logician includes translations in many languages, but is not necessarily included in foreign language search engines; you would render us a great service if you would add TheLogician.net url to non-English language search engines.

Study recommendations: These are large and complicated treatises, which attempt to answer certain ages-old philosophical questions in novel ways. They each took several years - thousands of hours - to develop and write, as their subject matters demanded; so do not expect to absorb them in a few minutes by reading a sentence here and a chapter there. They cannot be skimmed over casually, but require dedicated, attentive study over a long period of time. The most important chapters are not placed first or highlighted, but each subject is developed gradually and sequentially so that an intent student is sure to understand and profit.

Note that each book has an Abstract and a Table of Contents – look through these first, to get an overall picture. To gather momentum, read at least one chapter a week; but, to give yourself time to reflect, do not read more than one chapter a day. Always read the footnotes, they are intended as integral parts of the text. To navigate, use the buttons at the top (to choose a book), on the left (to choose a part or chapter) and at the bottom (to go to the next or previous chapter within a part), and of course your browser's back and forward arrows (to return to previously seen web pages). You can also use the General Sitemap.

Good reading! If you have the courage and you persevere, you will surely find it well worth the effort. "A journey of a thousand miles begins with the first step"...

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Launched: 11 May 2001. Last edited: 28 January 2010.

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The current average number of visits to the whole website, according to Google analytics and Bravenet statistics, is well over 150 visits per day (ranging from 100 to 2-300). On the basis of partial data from counters, this daily average may be assumed to have held steady during the eight plus years since its foundation. In that case, the total number of visits to date can be estimated as about 500'000. (Many of these visitors no doubt come here just for a quick look, or to look for some specific small item of information. Still, we can safely suppose that the serious readership has been at least in the tens of thousands.)