{"title":"模态逻辑的0 - 1定律","authors":"Joseph Y. Halpern, B. Kapron","doi":"10.1109/LICS.1992.185549","DOIUrl":null,"url":null,"abstract":"It is shown that a 0-1 law holds for propositional modal logic, both for structure validity and for frame validity. In the case of structure validity, the result follows easily from the well-known 0-1 law for first-order logic. However, the proof gives considerably more information. It leads to an elegant axiomatization for almost-sure structure validity, and sharper complexity bounds. Since frame validity can be reduced to a II/sub 1//sup 1/ formula, the 0-1 law for frame validity helps delineate when 0-1 laws exist for second-order logics.<<ETX>>","PeriodicalId":6412,"journal":{"name":"[1992] Proceedings of the Seventh Annual IEEE Symposium on Logic in Computer Science","volume":"26 1","pages":"369-380"},"PeriodicalIF":0.0000,"publicationDate":"1992-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"26","resultStr":"{\"title\":\"Zero-one laws for modal logic\",\"authors\":\"Joseph Y. Halpern, B. Kapron\",\"doi\":\"10.1109/LICS.1992.185549\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"It is shown that a 0-1 law holds for propositional modal logic, both for structure validity and for frame validity. In the case of structure validity, the result follows easily from the well-known 0-1 law for first-order logic. However, the proof gives considerably more information. It leads to an elegant axiomatization for almost-sure structure validity, and sharper complexity bounds. Since frame validity can be reduced to a II/sub 1//sup 1/ formula, the 0-1 law for frame validity helps delineate when 0-1 laws exist for second-order logics.<<ETX>>\",\"PeriodicalId\":6412,\"journal\":{\"name\":\"[1992] Proceedings of the Seventh Annual IEEE Symposium on Logic in Computer Science\",\"volume\":\"26 1\",\"pages\":\"369-380\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1992-06-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"26\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"[1992] Proceedings of the Seventh Annual IEEE Symposium on Logic in Computer Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/LICS.1992.185549\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"[1992] Proceedings of the Seventh Annual IEEE Symposium on Logic in Computer Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/LICS.1992.185549","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
It is shown that a 0-1 law holds for propositional modal logic, both for structure validity and for frame validity. In the case of structure validity, the result follows easily from the well-known 0-1 law for first-order logic. However, the proof gives considerably more information. It leads to an elegant axiomatization for almost-sure structure validity, and sharper complexity bounds. Since frame validity can be reduced to a II/sub 1//sup 1/ formula, the 0-1 law for frame validity helps delineate when 0-1 laws exist for second-order logics.<>
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