- Rule complex
A rule complex is a set consisting of rules and/or other rule complexes. This is a generalization of a set of rules, and provides a tool to investigate and describe how rules can function as values,
norms , judgmental or prescriptive rules, and meta-rules. Also possible is to examine objects consisting of rules such as roles,routines ,algorithms , models of reality, social relationships, and institutions. Ingame theory , rules and rule complexes can be used to define the behavior and interactions of the players (although ingeneralized game theory , the rules are not necessarily static. Rule complexes are especially associated with sociologistTom R. Burns and theUppsala Theory Circle .Formalization
Rules
In this setting, a rule is type of knowledge (in the sense of
epistemic logic (see Fagin, 2003)) formalized as a set of premises or conditions, a set of justifications, and a set of conclusions (this may be written as a triple, a rule ). Elements of "X" should hold, and of "Y" may hold. If "Y", the justifications, do not hold, then the rule cannot be applied. If "X", the premises, obtain and the justifications are not known to not apply, then the rule is applied, and is concluded. If "X" and "Y" are empty, then the rule is axiomatic (a "fact" or unconditional directive). Thus, rules can be seen as the basic objects of knowledge.Rule Complex
Formally, a rule complex is the class which contains all finite sets of rules, is closed under set-theoretical
union andpower set , and preserves inclusion:#Any finite set of rules is a rule complex;
#If are rule complexes, then and are rule complexes;
#If and is a rule complex, then is a rule complex.This means that for rule complexes and , are also rule complexes. A complex is a subcomplex of the complex if or may be obtained from by deleting some rules from and/or redundant parentheses (Burns, 2005).
References
*Fagin, Ronald et al. Reasoning about Knowledge. Cambridge: MIT Press, 2003.
*Burns T.R., Roszkowska E. (2005) Generalized Game Theory: Assumptions, Principles, and Elaborations Grounded in Social Theory, In Search of Social Order, “Studies in Logic, Grammar, and Rhetoric”, Vol. 8(21):7-40.
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