Reflective agents in metalogic programming
We introduce a representation of agents by means of theories, and a communication among agents based on reflection, within the metalogic programming paradigm. The semantics of these features is shown to be the classical semantics of Horn clauses. The primitives for agents representation and inter-agent communication are very simple, and non-committal w.r.t. any predefined cognitive model or linguistic modality. Yet, it is shown by means of examples that they have enough expressive power for reasoning in non-trivial multi-agent domains, like the three wise men problem, especially when embedded in a powerful language, such as Reflective Prolog that we have previously developed. By integrating agents into Reflective Prolog we get a metalogic language equipped with higher-order-like features, metalevel negation, and theories, all of which rely on logical reflection for a uniform semantics and support each other for greater expressive and problem-solving power.
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