Abstract
We present probabilistic approaches to check the validity of selected connexive principles within the setting of coherence. Connexive logics emerged from the intuition that conditionals of the form If \(\mathord {\thicksim }A\), then A, should not hold, since the conditional’s antecedent \(\mathord {\thicksim }A\) contradicts its consequent A. Our approach covers this intuition by observing that for an event A the only coherent probability assessment on the conditional event \(A|\bar{A}\) is \(p(A|\bar{A})=0\). Moreover, connexive logics aim to capture the intuition that conditionals should express some “connection” between the antecedent and the consequent or, in terms of inferences, validity should require some connection between the premise set and the conclusion. This intuition is covered by a number of principles, a selection of which we analyze in our contribution. We present two approaches to connexivity within coherence-based probability logic. Specifically, we analyze connections between antecedents and consequents firstly, in terms of probabilistic constraints on conditional events (in the sense of defaults, or negated defaults) and secondly, in terms of constraints on compounds of conditionals and iterated conditionals. After developing different notions of negations and notions of validity, we analyze the following connexive principles within both approaches: Aristotle’s Theses, Aristotle’s Second Thesis, Abelard’s First Principle and selected versions of Boethius’ Theses. We conclude by remarking that coherence-based probability logic offers a rich language to investigate the validity of various connexive principles.
Both authors contributed equally to the article and are listed alphabetically.
N. Pfeifer is supported by the BMBF project 01UL1906X.
G. Sanfilippo is a member of the GNAMPA Research Group and partially supported by the INdAM–GNAMPA Project 2020 Grant U-UFMBAZ-2020-000819.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Notes
- 1.
According to \(\varepsilon \)-semantics (see, e.g., [1, 38]) a default is interpreted by \(p(C|A)\ge 1-\varepsilon \), with \(\varepsilon >0\) and \(p(A)>0\). Gilio introduced a coherence-based probability semantics for defaults by also allowing \(\varepsilon \) and p(A) to be zero [15]. In this context, defaults in terms of probability 1 can be used to give a alternative definition of p-entailment which preserve the usual non-monotonic inference rules like those of System P [4, 15, 20, 21], see also [9, 10]. For the psychological plausibility of the coherence-based semantics of non-monotonic reasoning, see, e.g., [41,42,43, 47].
References
Adams, E.W.: The logic of conditionals. An application of probability to deduction. Reidel, Dordrecht (1975)
Berti, P., Regazzini, E., Rigo, P.: Well calibrated, coherent forecasting systems. Theory Probability Appl. 42(1), 82–102 (1998). https://doi.org/10.1137/S0040585X97975988
Biazzo, V., Gilio, A.: A generalization of the fundamental theorem of de Finetti for imprecise conditional probability assessments. Int. J. Approximate Reasoning 24(2–3), 251–272 (2000)
Biazzo, V., Gilio, A., Lukasiewicz, T., Sanfilippo, G.: Probabilistic logic under coherence, model-theoretic probabilistic logic, and default reasoning in System P. J. Appl. Non-Classical Logics 12(2), 189–213 (2002)
Calabrese, P.: Logic and Conditional Probability: A Synthesis. College Publications (2017)
Capotorti, A., Lad, F., Sanfilippo, G.: Reassessing accuracy rates of median decisions. Am. Stat. 61(2), 132–138 (2007)
Ciucci, D., Dubois, D.: Relationships between connectives in three-valued logics. In: Greco, S., Bouchon-Meunier, B., Coletti, G., Fedrizzi, M., Matarazzo, B., Yager, R.R. (eds.) IPMU 2012. CCIS, vol. 297, pp. 633–642. Springer, Heidelberg (2012). https://doi.org/10.1007/978-3-642-31709-5_64
Ciucci, D., Dubois, D.: A map of dependencies among three-valued logics. Inf. Sci. 250, 162–177 (2013). https://doi.org/10.1016/j.ins.2013.06.040
Coletti, G., Scozzafava, R.: Probabilistic Logic in a Coherent Setting. Kluwer, Dordrecht (2002)
Coletti, G., Scozzafava, R., Vantaggi, B.: Possibilistic and probabilistic logic under coherence: Default reasoning and System P. Math. Slovaca 65(4), 863–890 (2015)
de Finetti, B.: Sul significato soggettivo della probabilitá. Fundam. Math. 17, 298–329 (1931)
de Finetti, B.: Theory of Probability, vol. 1, 2. Wiley, Chichester (1970/1974)
Flaminio, T., Godo, L., Hosni, H.: Boolean algebras of conditionals, probability and logic. Artif. Intell. 286, 103347 (2020). https://doi.org/10.1016/j.artint.2020.103347
Freund, M., Lehmann, D., Morris, P.: Rationality, transitivity, and contraposition. Artif. Intell. 52(2), 191–203 (1991)
Gilio, A.: Probabilistic reasoning under coherence in System P. Ann. Math. Artif. Intell. 34, 5–34 (2002)
Gilio, A., Pfeifer, N., Sanfilippo, G.: Transitivity in coherence-based probability logic. J. Appl. Log. 14, 46–64 (2016). https://doi.org/10.1016/j.jal.2015.09.012
Gilio, A., Pfeifer, N., Sanfilippo, G.: Probabilistic entailment and iterated conditionals. In: Elqayam, S., Douven, I., Evans, J.S.B.T., Cruz, N. (eds.) Logic and Uncertainty in the Human Mind: A Tribute to David E. Over, pp. 71–101. Routledge, Oxon (2020). https://doi.org/10.4324/9781315111902-6
Gilio, A., Sanfilippo, G.: Conditional random quantities and iterated conditioning in the setting of coherence. In: van der Gaag, L.C. (ed.) ECSQARU 2013. LNCS (LNAI), vol. 7958, pp. 218–229. Springer, Heidelberg (2013). https://doi.org/10.1007/978-3-642-39091-3_19
Gilio, A., Sanfilippo, G.: Conjunction, disjunction and iterated conditioning of conditional events. In: Kruse, R., Berthold, M.R., Moewes, C., Gil, M.A., Grzegorzewski, P., Hryniewicz, O. (eds.) Synergies of Soft Computing and Statistics for Intelligent Data Analysis, AISC, vol. 190, pp. 399–407. Springer, Heidelberg (2013). https://doi.org/10.1007/978-3-642-33042-1_43
Gilio, A., Sanfilippo, G.: Probabilistic entailment in the setting of coherence: the role of quasi conjunction and inclusion relation. Int. J. Approximate Reasoning 54(4), 513–525 (2013). https://doi.org/10.1016/j.ijar.2012.11.001
Gilio, A., Sanfilippo, G.: Quasi conjunction, quasi disjunction, t-norms and t-conorms: Probabilistic aspects. Inf. Sci. 245, 146–167 (2013). https://doi.org/10.1016/j.ins.2013.03.019
Gilio, A., Sanfilippo, G.: Conditional random quantities and compounds of conditionals. Stud. Logica. 102(4), 709–729 (2014). https://doi.org/10.1007/s11225-013-9511-6
Gilio, A., Sanfilippo, G.: Conjunction of conditional events and t-norms. In: Kern-Isberner, G., Ognjanović, Z. (eds.) ECSQARU 2019. LNCS (LNAI), vol. 11726, pp. 199–211. Springer, Cham (2019). https://doi.org/10.1007/978-3-030-29765-7_17
Gilio, A., Sanfilippo, G.: Generalized logical operations among conditional events. Appl. Intell. 49(1), 79–102 (2019). https://doi.org/10.1007/s10489-018-1229-8
Gilio, A., Sanfilippo, G.: Algebraic aspects and coherence conditions for conjoined and disjoined conditionals. Int. J. Approximate Reasoning 126, 98–123 (2020). https://doi.org/10.1016/j.ijar.2020.08.004
Gilio, A., Sanfilippo, G.: Compound conditionals, Fréchet-Hoeffding bounds, and Frank t-norms. Int. J. Approximate Reasoning 136, 168–200 (2021). https://doi.org/10.1016/j.ijar.2021.06.006
Gilio, A., Sanfilippo, G.: On compound and iterated conditionals. Argumenta 6(2), 241–266 (2021). https://doi.org/10.14275/2465-2334/202112.gil
Goodman, I.R., Nguyen, H.T., Walker, E.A.: Conditional Inference and Logic for Intelligent Systems: A Theory of Measure-Free Conditioning. North-Holland (1991)
Holzer, S.: On coherence and conditional prevision. Bollettino dell’Unione Matematica Italiana 4(6), 441–460 (1985)
Horn, L.R.: A Natural History of Negation. CSLI Publications, Stanford (2001)
Kaufmann, S.: Conditionals right and left: probabilities for the whole family. J. Philos. Log. 38, 1–53 (2009)
Kraus, S., Lehmann, D., Magidor, M.: Nonmonotonic reasoning, preferential models and cumulative logics. Artif. Intell. 44, 167–207 (1990)
Lad, F.: Operational Subjective Statistical Methods: A Mathematical, Philosophical, and Historical Introduction. Wiley, New York (1996)
Lenzen, W.: A critical examination of the historical origins of connexive logic. Hist. Philos. Logic 41(1), 16–35 (2020)
Lewis, D.: Probabilities of conditionals and conditional probabilities. Philos. Rev. 85, 297–315 (1976)
McCall, S.: A history of connexivity. In: Gabbay, D.M., Pelletier, F.J., Woods, J. (eds.) Handbook of the History of Logic, vol. 11 (Logic: A History of its Central Concepts). Elsevier, Amsterdam (2012)
McGee, V.: Conditional probabilities and compounds of conditionals. Philos. Rev. 98, 485–541 (1989)
Pearl, J.: Probabilistic semantics for nonmonotonic reasoning: a survey. In: Shafer, G., Pearl, J. (eds.) Readings in Uncertain Reasoning, pp. 699–711. Morgan Kaufmann, San Mateo (1990)
Pfeifer, N.: Experiments on Aristotle’s Thesis: towards an experimental philosophy of conditionals. Monist 95(2), 223–240 (2012)
Pfeifer, N.: Probability logic. In: Knauff, M., Spohn, W. (eds.) Handbook of Rationality. MIT Press, Cambridge (in press)
Pfeifer, N., Kleiter, G.D.: Coherence and nonmonotonicity in human reasoning. Synthese 146(1–2), 93–109 (2005)
Pfeifer, N., Kleiter, G.D.: Framing human inference by coherence based probability logic. J. Appl. Log. 7(2), 206–217 (2009)
Pfeifer, N., Kleiter, G.D.: The conditional in mental probability logic. In: Oaksford, M., Chater, N. (eds.) Cognition and Conditionals: Probability and Logic in Human Thought, pp. 153–173. Oxford University Press, Oxford (2010)
Pfeifer, N., Sanfilippo, G.: Probabilistic squares and hexagons of opposition under coherence. Int. J. Approximate Reasoning 88, 282–294 (2017). https://doi.org/10.1016/j.ijar.2017.05.014
Pfeifer, N., Sanfilippo, G.: Probabilistic semantics for categorical syllogisms of Figure II. In: Ciucci, D., Pasi, G., Vantaggi, B. (eds.) SUM 2018. LNCS (LNAI), vol. 11142, pp. 196–211. Springer, Cham (2018). https://doi.org/10.1007/978-3-030-00461-3_14
Pfeifer, N., Sanfilippo, G.: Probability propagation in selected Aristotelian syllogisms. In: Kern-Isberner, G., Ognjanović, Z. (eds.) ECSQARU 2019. LNCS (LNAI), vol. 11726, pp. 419–431. Springer, Cham (2019). https://doi.org/10.1007/978-3-030-29765-7_35
Pfeifer, N., Tulkki, L.: Conditionals, counterfactuals, and rational reasoning. An experimental study on basic principles. Minds Mach. 27(1), 119–165 (2017)
Ramsey, F.P.: General propositions and causality (1929). In: Mellor, D.H. (ed.) Philosophical Papers by F. P. Ramsey, pp. 145–163. Cambridge University Press, Cambridge (1929/1994)
Regazzini, E.: Finitely additive conditional probabilities. Rendiconti del Seminario Matematico e Fisico di Milano 55, 69–89 (1985)
Sanfilippo, G.: Lower and upper probability bounds for some conjunctions of two conditional events. In: Ciucci, D., Pasi, G., Vantaggi, B. (eds.) SUM 2018. LNCS (LNAI), vol. 11142, pp. 260–275. Springer, Cham (2018). https://doi.org/10.1007/978-3-030-00461-3_18
Sanfilippo, G., Gilio, A., Over, D.E., Pfeifer, N.: Probabilities of conditionals and previsions of iterated conditionals. Int. J. Approximate Reasoning 121, 150–173 (2020). https://doi.org/10.1007/978-3-030-00461-3_14
Walley, P., Pelessoni, R., Vicig, P.: Direct algorithms for checking consistency and making inferences from conditional probability assessments. J. Stat. Plann. Inference 126(1), 119–151 (2004)
Wansing, H.: Connexive logic. In: Zalta, E.N. (ed.) The Stanford Encyclopedia of Philosophy. Spring 2020 edn. (2020). https://plato.stanford.edu/entries/logic-connexive/
Acknowledgment
Thanks to four anonymous reviewers for useful comments.
Author information
Authors and Affiliations
Corresponding authors
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 Springer Nature Switzerland AG
About this paper
Cite this paper
Pfeifer, N., Sanfilippo, G. (2021). Interpreting Connexive Principles in Coherence-Based Probability Logic. In: Vejnarová, J., Wilson, N. (eds) Symbolic and Quantitative Approaches to Reasoning with Uncertainty. ECSQARU 2021. Lecture Notes in Computer Science(), vol 12897. Springer, Cham. https://doi.org/10.1007/978-3-030-86772-0_48
Download citation
DOI: https://doi.org/10.1007/978-3-030-86772-0_48
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-86771-3
Online ISBN: 978-3-030-86772-0
eBook Packages: Computer ScienceComputer Science (R0)