Original writings by Avi Sion on the theory and practice of inductive and deductive LOGIC  

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A Fortiori Logic is now available in print (700p. A4) in hardcover ($50) and paperback ($30) editions (plus shipping expenses),
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A FORTIORI LOGIC

Innovations, History and Assessments

 

 

 by

Avi Sion, Ph.D.

 

 

A Fortiori Logic: Innovations, History and Assessments, by Avi Sion, is a wide-ranging and in-depth study of a fortiori reasoning, comprising a great many new theoretical insights into such argument, a history of its use and discussion from antiquity to the present day, and critical analyses of the main attempts at its elucidation. Its purpose is nothing less than to lay the foundations for a new branch of logic and greatly develop it; and thus to once and for all dispel the many fallacious ideas circulating regarding the nature of a fortiori reasoning.

 


© Copyright Avi Sion, 2013.

  Protected by international and Pan-American copyright conventions.

All rights reserved.

No part of this book may be reproduced in any manner whatsoever, or stored in a retrieval system or transmitted, without express permission of the Author-publisher, except in case of brief quotations with due acknowledgement.

 

Published in 2013, by Avi Sion in Geneva, Switzerland.  

ISBN  2-9700091-2-9


 

Dayeinu: al ahat kamah vekamah tovah kefulah umekhupelet laMakom aleinu…

 

It would have sufficed us [if He had done us any one or more of these many listed kindnesses, yet] how much more good, many times more and still more, did God [blessed be He] bring upon us!

 

A fortiori discourse in the Passover Haggadah. (My translation and brackets mine.)

 


 

A Fortiori Logic is divided into 33 chapters, and 7 appendices.

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