Relations between the logic of theory change and nonmonotonic logic

2005 ◽  
pp. 183-205 ◽  
Author(s):  
David Makinson ◽  
Peter Gärdenfors
Keyword(s):  
Theory Change ◽  
Nonmonotonic Logic ◽  
Logic Of Theory Change

On the Logic of Theory Change: Partial Meet Contraction and Revision Functions

2016 ◽  
pp. 195-217
Author(s):  
Carlos E. Alchourrón ◽  
Peter Gärdenfors ◽  
David Makinson
Keyword(s):  
Theory Change ◽  
Partial Meet Contraction ◽  
Logic Of Theory Change

On the modal logic of theory change

2005 ◽  
pp. 259-281 ◽  
Author(s):  
André Fuhrmann
Keyword(s):  
Modal Logic ◽  
Theory Change ◽  
Logic Of Theory Change

How to give it up: A survey of some formal aspects of the logic of theory change

Synthese ◽  
1985 ◽  
Vol 62 (3) ◽  
pp. 347-363 ◽  
Author(s):  
David Makinson
Keyword(s):  
Theory Change ◽  
Logic Of Theory Change

Epistemic Importance and the Logic of Theory Change

1985 ◽  
pp. 345-367 ◽  
Author(s):  
Peter Gärdenfors
Keyword(s):  
Theory Change ◽  
Logic Of Theory Change

On the logic of theory change: Contraction functions and their associated revision functions

Theoria ◽  
2008 ◽  
Vol 48 (1) ◽  
pp. 14-37 ◽  
Author(s):  
CARLOS E. ALCHOURRON ◽  
DAVID MAKINSON
Keyword(s):  
Theory Change ◽  
Logic Of Theory Change

scholarly journals On the logic of theory change: iteration of expansion

2018 ◽  
Vol 24 (1) ◽  
Author(s):  
Eduardo Fermé ◽  
Renata Wassermann
Keyword(s):  
Theory Change ◽  
Logic Of Theory Change

On the logic of theory change: Partial meet contraction and revision functions

1985 ◽  
Vol 50 (2) ◽  
pp. 510-530 ◽  
Author(s):  
Carlos E. Alchourrón ◽  
Peter Gärdenfors ◽  
David Makinson
Keyword(s):  
Representation Theorem ◽  
Theory Change ◽  
Partial Meet Contraction ◽  
Basic Properties ◽  
Maximal Subset ◽  
Logic Of Theory Change ◽  
Gärdenfors Postulates ◽  
Special Classes

AbstractThis paper extends earlier work by its authors on formal aspects of the processes of contracting a theory to eliminate a proposition and revising a theory to introduce a proposition. In the course of the earlier work, Gärdenfors developed general postulates of a more or less equational nature for such processes, whilst Alchourrón and Makinson studied the particular case of contraction functions that are maximal, in the sense of yielding a maximal subset of the theory (or alternatively, of one of its axiomatic bases), that fails to imply the proposition being eliminated.In the present paper, the authors study a broader class, including contraction functions that may be less than maximal. Specifically, they investigate “partial meet contraction functions”, which are defined to yield the intersection of some nonempty family of maximal subsets of the theory that fail to imply the proposition being eliminated. Basic properties of these functions are established: it is shown in particular that they satisfy the Gärdenfors postulates, and moreover that they are sufficiently general to provide a representation theorem for those postulates. Some special classes of partial meet contraction functions, notably those that are “relational” and “transitively relational”, are studied in detail, and their connections with certain “supplementary postulates” of Gàrdenfors investigated, with a further representation theorem established.

scholarly journals Carlos E. Alchourrón. Breve biografía intelectual

1996 ◽  
Vol 28 (82) ◽  
pp. 3-12
Author(s):  
Gladys Palau
Keyword(s):  
Historical Development ◽  
Theory Change ◽  
Intellectual Biography ◽  
Defeasible Logic ◽  
Normative Systems ◽  
Logic Of Theory Change ◽  
Agm Theory ◽  
Normative Logic

This paper is a short intellectual biography of Professor Carlos E. Alchourrón. I analyze his main contributions in three fields: 1) the logic of normative systems, 2) the logic of theory change, and 3) the logic of defeasible conditionals. I review the historical development of his thought on these three subjects. Furthermore, I show how the problems that arise in the field of normative logic stimulated him to find solutions in the AGM theory and in defeasible logic. Lastly, I show how in his last papers these three fields converge in a general englobing approach.

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