Abstract
The paper presents a general method by which various natural decision problems for programs in PROLOG and extensions of PROLOG can easily be shown to be recursively unsolvable. A particularly interesting application of this method gives an affirmative answer to Flannagan's [1985] conjecture that the floundering property for queries with respect to MU-PROLOG programs is undecidable.KeywordsLogic ProgramSelection RuleAtomic FormulaDeductive DatabaseProlog ProgramThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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