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＜電子ブック＞
The Is-Ought Problem : An Investigation in Philosophical Logic / by G. Schurz
(Trends in Logic, Studia Logica Library. ISSN:22127313 ; 1)

版	1st ed. 1997.
出版者	(Dordrecht : Springer Netherlands : Imprint: Springer)
出版年	1997
本文言語	英語
大きさ	X, 332 p : online resource
著者標目	*Schurz, G author SpringerLink (Online service)
件　名	LCSH:Logic LCSH:Philosophy and social sciences LCSH:Science -- Philosophy  全ての件名で検索 FREE:Logic FREE:Philosophy of the Social Sciences FREE:Philosophy of Science
一般注記	1. Philosophical Background and Program of the Study -- 2. The Logical Background: A.D.1-Logics -- 3. The Logical Explication of Hume’s Thesis -- 4. The General Hume Thesis GH -- 5. The Special Hume Thesis SH -- 6. Weakened Versions of Hume’s Thesis in A.D.I-Logics with Bridge Principles -- 7. A.D.1-Logics with Weak Alethic Fragments: ? as a Subjective Propositional Attitude -- 8. Generalizations -- 9. Some Applications to Ethical Arguments -- 10. The Problems of Identity and Existence -- 11. Are There Analytic Bridge Principles? A Philosophical Investigation -- 12. Are Synthetic Bridge Principles Scientifically Justifiable? -- A.1 Interchange of substitution for predicates and for individual variables -- A.2 Transitivity of predicate substitutions -- A.5 Preservation of frame-validity under ?-substitution -- A.6 Advancing ?-, a- and d-rule -- A.7 Model-completeness for a.d.l-logics -- A.8 Singleton frames for a.d.1-logics which are not propositionally representable -- A.9 Canonical a.0-logics with incomplete 1-counterparts -- A.10 Canonicity transfer from a.0- to a.1-logics -- A.11 Canonicity transfer from monomodal to combined bimodal 1-logics -- A.12 Halldéncompleteness and the Bolzano-criterion -- A.13 Correspondence and canonicity for (N1-5) -- A.14 Domains of j.1.-models -- A.16 Characterization of a.d.(G)2-logics -- A.17 Admissibility of (?GR) -- Table of Definitions, Lemmata, Propositions, Theorems, Corollaries, Facts, Figures and Problems -- Notes Can OUGHT be derived from IS? This book presents an investigation of this time-honored problem by means of alethic-deontic predicate logic. New in this study is the leitmotif of relevance: is-ought inferences indeed exist, but they are all irrelevant in a precise logical sense. New proof techniques establish this result for very broad classes of logics. A profound philosophical analysis of is-ought bridge principles supplements the logical study. The final results imply incisive limitations for the justifiability of ethics as opposed to empirical science HTTP:URL=https://doi.org/10.1007/978-94-017-3375-5

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