Packet reasoning(P-reasoning) is obtained by packet sets(P-sets). It is a reasoning pair composed of internal packet reasoning (internal P-reasoning)and outer packet reasoning (outer P-reasoning), which has dynamic and intelligent characteristics. Based on the theories of packet sets and packet reasoning, the concept of internal convergence information was presented, while its attribute characteristics were discussed. After that, the paper provided generation theorem of internal P-reasoning,existence theorem,and identification theorem about internal convergence information. Finally, its applications in dynamic information system were given.%P-推理(packet reasoning)是由内P-推理(internal packet reasoning)与外P-推理(outer packet reasoning)共同构成的.P-推理是一个动态推理,具有智能特征;P-推理是由P-集合得到的.利用P-集合与P-推理理论,给出了内收敛信息与它的属性特性、内收敛信息的内P-推理生成与生成定理、内收敛信息的存在原理与辨识定理以及内收敛信息在动态信息系统中的应用.
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