
 Philosophical Logic 
  Handbook of Philosophical Logic, Volume 1 (Second Edition) by Dov M. Gabbay, F. Guenthner (Kluwer Academic) The first edition of the Handbook of Philosophical Logic (four volumes) was published in the period 19831989 and has proven to be an invaluable reference work to both students and researchers in formal philosophy, language, and logic. 
  We felt at the time (1979) that non‑monotonic logic was not, ready for a chapter yet and that combinatory logic and a‑calculus was too far removed.' Non‑monotonic logic is now a very major area of philosophical logic, alongside default logics, labelled deductive systems, fibring logics, multi‑dimensional, multimodal and substructural logics. 
  Perhaps the most impressive achievement of philosophical logic as arising in the past decade has been the effective negotiation of research partnerships with fallacy theory, informal logic and argumentation theory, attested to by the Amsterdam Conference in Logic and Argumentation in 1995, and the two Bonn Conferences in Practical Reasoning in 1996 and 1997. 
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