TY - GEN
T1 - Non-deterministic semantics for paraconsistent C-systems
AU - Avron, Arnon
PY - 2005
Y1 - 2005
N2 - We provide non-deterministic semantics for the 3 basic paraconsistent C-systems C (also known as bC), Ci, and Cia, as well as to all 9 extensions of them by one or two of the schemata (I) ¬(φ∧¬φ) ⊃ oφ and (e) φ ⊃ ¬¬φ. This includes da Costa's original C 1 (which is equivalent to Cila). Our semantics is 3-valued for the systems without (I), and infinite-valued for the systems with it. We prove that these results cannot be improved: neither of the systems without (I) has either a finite characteristic ordinary matrix or a two-valued characteristic non-deterministic matrix, and neither of the systems with (I) has a finite characteristic non-deterministic matrix. Still, our semantics suffices for providing decision procedures for all the systems investigated.
AB - We provide non-deterministic semantics for the 3 basic paraconsistent C-systems C (also known as bC), Ci, and Cia, as well as to all 9 extensions of them by one or two of the schemata (I) ¬(φ∧¬φ) ⊃ oφ and (e) φ ⊃ ¬¬φ. This includes da Costa's original C 1 (which is equivalent to Cila). Our semantics is 3-valued for the systems without (I), and infinite-valued for the systems with it. We prove that these results cannot be improved: neither of the systems without (I) has either a finite characteristic ordinary matrix or a two-valued characteristic non-deterministic matrix, and neither of the systems with (I) has a finite characteristic non-deterministic matrix. Still, our semantics suffices for providing decision procedures for all the systems investigated.
UR - http://www.scopus.com/inward/record.url?scp=26944470346&partnerID=8YFLogxK
U2 - 10.1007/11518655_53
DO - 10.1007/11518655_53
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AN - SCOPUS:26944470346
SN - 3540273263
SN - 9783540273264
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 625
EP - 637
BT - Symbolic and Quantitative Approaches to Reasoning with Uncertainty - 8th European Conference, ECSQARU 2005, Proceedings
PB - Springer Verlag
T2 - 8th European Conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty, ECSQARU 2005
Y2 - 6 July 2005 through 8 July 2005
ER -