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TABLEAUX
1997
Springer
15 years 1 months ago
1997
Springer
We present a Prolog program that implements a sound and complete theorem prover for first-order intuitionistic logic. It is based on free-variable semantic tableaux extended by an...
LISP
2008
14 years 9 months ago
2008
Higher-order logic proof systems combine functional programming with logic, providing functional programmers with a comfortable setting for the formalization of programs, specifica...
VLDB
1987
ACM
15 years 1 months ago
1987
ACM
A model for a historical database is described which is based upon time-stamped tuples as the unit of storage. The model includes both physical and logical time-stamps. The techni...
ICDE
1993
IEEE
15 years 1 months ago
1993
IEEE
The IsaLog model and language are presented. The model has complex objects with classes, relations, and isa hierarchies. The language is strongly typed and declarative. The main i...
CASCON
2004
14 years 11 months ago
2004
For several reasons a database may not satisfy certain integrity constraints (ICs), for example, when it is the result of integrating several independent data sources. However, mo...