Abstract
In this work we propose a fuzzy free logic, that is a generalized system which can give proper interpretation to sentences containing vagueness of non-referring singular terms. This logic is an amalgamation of classical positive free logic system with predicate rational Pavelka logic. The semantics given to the fuzzy free logic is based on dual-domain semantics. A graded similarity measure is introduced in the system which allows comparing two objects based on some properties and assign a degree of similarity. Soundness of the proposed system is proved.
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References
Banerjee, M., Chakraborty, M.K.: Foundations of vagueness: a category-theoretic approach. Electron. Notes Theor. Comput. Sci. 82(4), 10–19 (2003)
Běhounek, L., Dvořák, A.: Non-denoting terms in fuzzy logic: an initial exploration. In: Kacprzyk, J., Szmidt, E., Zadrożny, S., Atanassov, K.T., Krawczak, M. (eds.) IWIFSGN/EUSFLAT -2017. AISC, vol. 641, pp. 148–158. Springer, Cham (2018). https://doi.org/10.1007/978-3-319-66830-7_14
Bencivenga, E.: Free semantics. In: Dalla Chiara, M.L. (ed.) Italian Studies in the Philosophy of Science. Boston Studies in the Philosophy of Science, vol. 47, pp. 31–48. Springer, Dordrecht (1980). https://doi.org/10.1007/978-94-009-8937-5_3
Hájek, P.: Metamathematics of Fuzzy Logic, vol. 4. Springer, Heidelberg (2013)
Hájek, P., Paris, J., Shepherdson, J.: Rational Pavelka predicate logic is a conservative extension of łukasiewicz predicate logic. J. Symb. Log. 65, 669–682 (2000)
Khan, M.A., Banerjee, M., Rieke, R.: An update logic for information systems. Int. J. Approximate Reason. 55(1), 436–456 (2014)
Lambert, K.: Free Logic: Selected Essays. Cambridge University Press, Cambridge (2002)
Lambert, K.: The philosophical foundations of free logic. In: Lambert, K. (ed.) Free Logic: Selected Essays, pp. 122–175. Cambridge University Press, Cambridge (2004)
Lambert, K., et al.: Existential import revisited. Notre Dame J. Formal Log. 4(4), 288–292 (1963)
Lambert, K., et al.: Free logic and the concept of existence. Notre Dame J. Formal Log. 8(1–2), 133–144 (1967)
Lehmann, S.: Strict Fregean free logic. J. Philos. Log. 307–336 (1994)
Morscher, E., Simons, P.: Free logic: a fifty-year past and an open future. In: Morscher, E., Hieke, A. (eds.) New Essays in Free Logic. Applied Logic Series, vol. 23, pp. 1–34. Springer, Dordrecht (2001). https://doi.org/10.1007/978-94-015-9761-6_1d
Nolt, J.: Free logics. In: Jacquette, D. (ed.) Philosophy of Logic, pp. 1023–1060. Elsevier, Amsterdam (2007)
Sessa, M.I.: Approximate reasoning by similarity-based SLD resolution. Theoret. Comput. Sci. 275(1–2), 389–426 (2002)
Acknowledgement
The authors are indebted to Dr. Mihir Kumar Chakraborty and Dr. Purbita Jana for their valuable comments and suggestions.
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Paul, B., Paul, S. (2023). Fuzzy Free Logic with Dual Domain Semantics. In: Banerjee, M., Sreejith, A.V. (eds) Logic and Its Applications. ICLA 2023. Lecture Notes in Computer Science, vol 13963. Springer, Cham. https://doi.org/10.1007/978-3-031-26689-8_10
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