Computer Science ›› 2024, Vol. 51 ›› Issue (1): 295-300.doi: 10.11896/jsjkx.230600009

• Artificial Intelligence • Previous Articles     Next Articles

Construction and Compounding of a Class of Regular Standard Contradictions in Propositional Logic

ZANG Hui1, HE Xingxing1, WANG Chenglong1, LI Yingfang2, LI Tianrui3   

  1. 1 School of Mathematics,Southwest Jiaotong University,Chengdu 611756,China
    2 School of Computer and Artificial Intelligence,Southwestern University of Finance and Economics,Chengdu 611130,China
    3 School of Computer and Artificial Intelligence,Southwest Jiaotong University,Chengdu 611756,China
  • Received:2023-05-31 Revised:2023-09-25 Online:2024-01-15 Published:2024-01-12
  • About author:ZANG Hui,born in 2000,master.Her main research interests include compo-site of contradictions and graph depth learning.
    LI Yingfang,born in 1985,Ph.D,asso-ciate professor.Her main research in-terests include intelligent information processing,intelligent decision making and control,measurement and analysis of uncertain information,reasoning and problem solving and so on.
  • Supported by:
    Fundamental Research Funds for the Central Universities of Ministry of Education of China(2682020ZT107),National Natural Science Foundation of China(62106206),Humanities and Social Sciences Project of Ministry of Education(19YJCZH048,20XJCZH016) and Science and Technology Program of Sichuan Province(2023YFH0066).

Abstract: The resolution principle is a brief,reliable and complete inference rule in automated reasoning and the deductive theory of standard contradiction separation is an extension of binary resolution.Since the structure of the standard contradiction is very complex and there are few existing contradiction types and generation strategies,this paper first obtains multiple compound stra-tegies for generating new contradictions by compounding two or more contradictions based on the standard contradiction separation deduction theory in propositional logic.Then a kind of special standard contradiction structure,i.e.,composite regular stan-dard contradiction,is put forward to enrich the structural features of contradictions.Furthermore,the expandability of the diffe-rent clauses of the new contradictions obtained by compounding is discussed,which leads to corresponding literals adding strategies.Finally,algorithms for generating contradictions are proposed to provide a reference for further implementing the generation of new contradictions on computers.

Key words: Propositional logic, Standard contradiction, Composite regular standard contradiction, Composite strategy, Literals adding strategy

CLC Number: 

  • TP181
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