Titlebook: Logic, Language, Information, and Computation; 18th International W Lev D. Beklemishev,Ruy Queiroz Conference proceedings 2011 Springer Ber

Functional

Logic in the Time of WWW: An OWL Viewxt of the . Web Ontology Language and ontology-based data access (OBDA). In a typical OBDA scenario, . is an . ‘ontology’ providing a user-oriented view of raw data . and .(.) is a query with answer variables .. Unlike classical automated reasoning, an important requirement for OBDA is that it shoul

judiciousness

A Complexity Question in Justification LogicT, LP and JD, were established to be .-complete. A corresponding lower bound is also known for JD4, the system that includes the consistency axiom and positive introspection. However, no upper bound has been established so far for this logic. Here, the missing upper bound for the complexity of JD4 i

Derogate

neologism

Partial Realization in Dynamic Justification Logic ., a dynamic justification logic that includes term operators to reflect public announcements on the level of justifications. We create dynamic epistemic semantics for .. We also elaborate on the relationship of dynamic justification logics to Gerbrandy–Groeneveld’s . by providing a partial realiza

NEEDY

Hoare Logic for Higher Order Store Using Simple Semanticstore program, the procedures/commands of the program are not fixed, but can be manipulated at runtime by the program itself; such programs provide a foundation to study language features such as reflection, dynamic loading and runtime code generation. By adapting the semantics of a proof system for

Sedative

Nominal Lawvere Theoriesducts. This formulation allows equational theories to be investigated as first class mathematical entities. However, many formal systems, particularly in computer science, are described by equations modulated by side conditions asserting the “freshness of names”; these may be expressed as theories o

胆汁

Turing Machines on Cayley Graphsnd conclude that the proper degree of generality is Cayley graphs. Surprisingly, this generalization does not lead to yet another equivalent formulation of the notion of computable function. Rather, it gives an alternative definition of the recursively enumerable Turing degrees that does not rely on

高度表

Information Flow on Directed Acyclic Graphs a relation known in information flow as nondeducibility. A logical system that describes the properties of this relation for an arbitrary fixed directed acyclic graph is introduced and proven to be complete and decidable.

ESPY

The Boyce-Codd-Heath Normal Form for SQLdundancy in terms of functional dependencies. For efficient means of data processing the industry standard SQL permits partial data and duplicate rows of data to occur in database systems. Consequently, the combined class of uniqueness constraints and functional dependencies is more expressive than

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