In "The Logical Form of Action Sentences" Donald Davidson argues that Hans Reichenbach's analysis of action and event sentences is "radically defective." I show that Reichenbach can easily deflect Davidson's objections, thus leaving their respective accounts largely comparable.

There is wide support in logic, philosophy, and psychology for the hypothesis that the probability of the indicative conditional of natural language, P(if A then B), is the conditional probability of B given A, P(B|A). We identify a conditional which is such that P(if A then B)=P(B|A) with de Finetti's conditional event, B|A. An objection to making this identification in the past was that it appeared unclear how to form compounds and iterations of conditional events. In this paper, we illustrate (...) how to overcome this objection with a probabilistic analysis, based on coherence, of these compounds and iterations. We interpret the compounds and iterations as conditional random quantities which, given some logical dependencies, may reduce to conditional events. We show how the inference to B|A from A and B can be extended to compounds and iterations of both conditional events and biconditional events. Moreover, we determine the respective uncertainty propagation rules. Finally, we make some comments on extending our analysis to counterfactuals. (shrink)

WREEN'S PROPOSAL FOR AVOIDING CAUSAL LOOPS IN THE DESCRIPTION OF ACTION IS, I ARGUE, ITSELF LOOPY.

Possible worlds models of belief have difficulties accounting for unawareness, the inability to entertain (and hence believe) certain propositions. Accommodating unawareness is important for adequately modelling epistemic states, and representing the informational content to which agents have in principle access given their explicit beliefs. In this paper, I develop a model of explicit belief, awareness, and informational content, along with an sound and complete axiomatisation. I furthermore defend the model against the seminal impossibility result of Dekel, Lipman and Rustichini, according (...) to which three intuitive conditions preclude non-trivial unawareness on any possible worlds model of belief. (shrink)

Karl Pfeifer attempts to present a coherent view of panentheism that eschews Pickwickian senses of “in” and aligns itself with, and builds upon, familiar diagrammed portrayals of panentheism. The account is accordingly spatial-locative and moreover accepts the proposal of R.T. Mullins that absolute space and time be regarded as attributes of God. In addition, however, it argues that a substantive parthood relation between the world and God is required. Pfeifer’s preferred version of panpsychism, viz. panintentionalism, is thrown into (...) the mix as an optional add-on. On this account, God is conceived of as a “spiritual field” whose nature can be made more intelligible by regarding “God” as having a mass-noun sense in some contexts. Pfeifer closes with the suggestion that we look to topology and mereology for further development of the position outlined in his paper. (shrink)

Karl Pfeifer argues against Searle's "Connection Principle" which requires that unconscious intentional mental states must be in principle accessible to consciousness.

A large body of compelling evidence has been accumulated demonstrating that embodiment – the agent’s physical setup, including its shape, materials, sensors and actuators – is constitutive for any form of cognition and as a consequence, models of cognition need to be embodied. In contrast to methods from empirical sciences to study cognition, robots can be freely manipulated and virtually all key variables of their embodiment and control programs can be systematically varied. As such, they provide an extremely powerful tool (...) of investigation. We present a robotic bottom-up or developmental approach, focusing on three stages: (a) low-level behaviors like walking and reflexes, (b) learning regularities in sensorimotor spaces, and (c) human-like cognition. We also show that robotic based research is not only a productive path to deepening our understanding of cognition, but that robots can strongly benefit from human-like cognition in order to become more autonomous, robust, resilient, and safe. (shrink)

Geoffrey Marnell presents philosophical arguments favoring grammatical descriptivism over grammatical prescriptivism. I argue that his explanation and defence of descriptivism reveal that his descriptivism is itself prescriptivist.

There is a long tradition in formal epistemology and in the psychology of reasoning to investigate indicative conditionals. In psychology, the propositional calculus was taken for granted to be the normative standard of reference. Experimental tasks, evaluation of the participants’ responses and psychological model building, were inspired by the semantics of the material conditional. Recent empirical work on indicative conditionals focuses on uncertainty. Consequently, the normative standard of reference has changed. I argue why neither logic nor standard probability theory provide (...) appropriate rationality norms for uncertain conditionals. I advocate coherence based probability logic as an appropriate framework for investigating uncertain conditionals. Detailed proofs of the probabilistic non-informativeness of a paradox of the material conditional illustrate the approach from a formal point of view. I survey selected data on human reasoning about uncertain conditionals which additionally support the plausibility of the approach from an empirical point of view. (shrink)

An interview with Ed Casey where we discuss the intersections of his philosophical work with current political issues, including the Israel-Palestine conflict.

A review of Geoffrey Marnell, Mathematical Doodlings: Curiosities, conjectures, and challenges.

Jeanette Edwards did fieldwork in the English town of Bacup. Why do fieldwork there? She writes that she is often asked this, whereas the question is unlikely to be asked of an anthropologist who does fieldwork in Papua New Guinea, because it is “axiomatically” an acceptable place for fieldwork. I present two responses to Edwards’ thinking, one of which concerns an asymmetry in how “skeptics” present their questions.

This is an essay in the form of a concept-map plus explanatory notes. It outlines the path followed by Information from Noumena to Knowledge. The viewpoint is strictly Physicalist. Thus, for example, a priori concepts reach us via DNA which chemically embodies critical a posteori concepts developed as a result of the experience and survival of previous generations. In a similar vein, Intelligence, also inherited via DNA, consists of strategies of data reduction which maximize the data handling abilities of the (...) brain. (shrink)

Karl Pfeifer revisits Wittgenstein’s parenthetical allusion in the _Tractatus Logico-Philosophicus_ to the Grimms’ fairytale “The Golden Lads”, confirming that it does not work well as an illustration of the notion of “internal identity” that figures in Wittgenstein’s picture theory. He then proposes alternative ways of understanding the relationship of identity apparent in “The Golden Lads”.

The standard representation theorem for expected utility theory tells us that if a subject’s preferences conform to certain axioms, then she can be represented as maximising her expected utility given a particular set of credences and utilities—and, moreover, that having those credences and utilities is the only way that she could be maximising her expected utility. However, the kinds of agents these theorems seem apt to tell us anything about are highly idealised, being always probabilistically coherent with infinitely precise degrees (...) of belief and full knowledge of all a priori truths. Ordinary subjects do not look very rational when compared to the kinds of agents usually talked about in decision theory. In this paper, I will develop an expected utility representation theorem aimed at the representation of those who are neither probabilistically coherent, logically omniscient, nor expected utility maximisers across the board—that is, agents who are frequently irrational. The agents in question may be deductively fallible, have incoherent credences, limited representational capacities, and fail to maximise expected utility for all but a limited class of gambles. (shrink)

According to Frankfurt’s analysis, bullshitting and lying necessarily differ in intention. I argue contra Frankfurt that (i) bullshitting can be lying, and that (ii) bullshitting need involve neither misrepresentation nor intention to deceive. My discussion suggests that bullshit is not capturable by a simple formula and that, although illuminating, Frankfurt’s analysis is limited to one paradigm.

This paper presents folk impressions of the University of Manchester’s difficulties in becoming a great university, but by means of a fiction imitating a distinguished writer from the Indian subcontinent. The impressions concern past efforts and the difficulties they faced.

Karl Pfeifer argues against the view that an aesthetic experience must be a uniquely special kind of experience by means of an analogy with sexual experiences. Nonetheless, he leaves open the possibility that some aesthetic experiences might still be of a special kind.

Karl Pfeifer distinguishes between humor used extraneously in the delivery of philosophical content and humor intrinsic to the content itself: “Enlivening the delivery isn’t the same as enlivening the content of the delivery.” Using examples from topics in philosophy of mind and moral philosophy he illustrates how humor can be used to make certain ideas more engaging and memorable for students. He also gives an example of what to avoid.

In her book on the English village of Elmdon, the anthropologist Marilyn Strathern identifies an assumption made by villagers: that much as Elmdon has a set of real Elmdon families, long associated with the place, so other villages also have their real families. I present an argument in favour of the assumption; the argument is an informal model.

This is the commentary on John Baker, "H. P. Grice's Construction of Value", read at the 34th Annual Congress of the Canadian Philosophical Association, May 1990, Victoria, British Columbia.

While Classical Logic (CL) used to be the gold standard for evaluating the rationality of human reasoning, certain non-theorems of CL—like Aristotle’s and Boethius’ theses—appear intuitively rational and plausible. Connexive logics have been developed to capture the underlying intuition that conditionals whose antecedents contradict their consequents, should be false. We present results of two experiments (total n = 72), the first to investigate connexive principles and related formulae systematically. Our data suggest that connexive logics provide more plausible rationality frameworks for (...) human reasoning compared to CL. Moreover, we experimentally investigate two approaches for validating connexive principles within the framework of coherence-based probability logic (Pfeifer & Sanfilippo, 2021). Overall, we observed good agreement between our predictions and the data, but especially for Approach 2. (shrink)

Are the leading members of different fields comparable in their achievements? Is the A-grade painter (or A* if that is your top grade) somehow equivalent to the A-grade boxer, say? I would like to think so, but there is a problematic piece of data for me, though there is a philosophical question of why it is problematic: I find some brief remarks from a certain painter as funny as the jokes of leading comedians. In the appendix, I cast doubt on (...) my characterization of Salvador Dali’s humour as not trading on English language ambiguity. (shrink)

In this paper, I present a little puzzle to do with a book of prefaces.

A textbook by Norwegian anthropologist Thomas Hylland Eriksen tells us that Gregory Bateson criticized the use of the term ‘function’ in social anthropology on the following grounds: it has no place outside of mathematics. But consulting the Bateson text referred to, he does not say that in his section on function and even endorses certain uses of the term “function” in anthropology. I look into these and his criticisms of functionalism, responding to the criticisms.

In this paper, I consider the objection to British structural-functionalism that it is unable to deal with the significance of individuals. There are various ways in which individuals may pose a problem for it. I identify four ways, one of which is novel. This way is when someone does not appear to meet the official role requirements in an organization, which gives rise to the question of whether the anthropologist should posit an alternative structure of roles for the organization.

Diego Gambetta and Gloria Origgi describe Italy as a country in which there is a widespread preference for promising high quality goods and delivering low quality goods. Builders are presented as an example. Gambetta and Origgi make proposals regarding why there are these preferences. I was going to ask, why don’t they just try being builders for a while? But metaphorically speaking, they are builders, which makes explaining the problems they face easier.

I present a vision of a university in which each of the departments is based on having solved a paradox (especially for those who think that philosophers on here lack vision, in a grand sense!). I do so imitating a notable modernist writer, apologies for any political incorrectness.

This paper presents an obvious explanation for why Oedipus even attempted to solve the Sphinx’s riddle, given the high cost of failure.

This book is a general defence of Donald Davidson's and G.E.M. Anscombe's 'unifying' approach to the individuation of actions and other events against objections raised by Alvin I. Goldman and others. It is argued that, ironically, Goldman's rival 'multiplying' account is itself vulnerable to these objections, whereas Davidson's account survives them. Although claims that the unifier-multiplier dispute is not really substantive are shown to be unfounded, some room for limited agreement over the ontological status of events is indicated. Davidson's causal (...) criterion of event identity is then defended against charges of triviality or inadequacy. It is concluded that Davidson's criterion is not primarily a criterion for arriving at particular judgments of individuation, but a metaphysical standard for the correctness of such judgments, however arrived at. Contents: Unifiers vs. Multipliers - Davidson's individuation of events - Goldman's act generation - causal, 'by'-relational, and temporal problems - ontology and event constituents - Davidson's causal criterion. This book is unique in providing a detailed survey and analysis of the recent unifier-multiplier dispute, and will be of interest to all researchers in action theory, as well as those working more broadly in metaphysics, philosophy of language, and philosophy of mind. (shrink)

In this paper, I present the problem of the poor king, from combining Descartes and Rousseau.

There are philosophers and literary figures who write on a variety of topics. I suppose I do as well. Here I present two personal worries about the advice to become a narrow specialist.

This paper is written as a pastiche of a notable European novelist, and essayist – it is the essayist who is being imitated, my first effort at this. I make some notes on a paragraph from a well-crafted fiction by Stacy Aumonier. I use the pastiche mode not just for fun but because readers may prefer the bolder and less qualified style, despite some information loss.

George Bernard Shaw did various things to make his essays readable, such as using short sections. In this paper, I raise the worry that they are at risk of being replaced by vocabulary and sayings from folk culture.

This paper proposes that Fodor has, or had, a personal reason to avoid the creative writing department, to do with his opposition to inferential role semantics.

I respond to Dan Lowe’s charge that libertarianism, or the most defensible version, involves an unacceptable “asymmetry of value.” I argue that there is an inconsistency between Lowe’s approach to counterexamples and his eventual objection.

I present two senses in which a political philosophy may be an ideal theory. They are not identified by Laura Valentini, in her much-cited paper. The paper is written as a pastiche of the writing style of the distinguished legal and political philosopher Joseph Raz, who recently passed away, with my notes at the foot of the page within square brackets.

An explanation for why the Bisa do not perform a traditional dance to express their identity is all-or-nothing reasoning: “We would have to water it down for this audience and that is not a Bisa dance.”.

One way of trying to justify the thesis of the underdetermination of scientific theories is by actual examples. In this paper, I present a paradox which arises from trying to justify the thesis in this way.

This paper tries to make sense of a piece of dialogue from Flora Nwapa’s novel Women are Different. I clarify the conclusion drawn by one of the characters, which enables a solution.

This paper considers two explanations for why the main character of Flora Nwapa’s novel One is Enough does not answer the question of how many times her mother-in-law has visited. One of these is a variation on the surprise exam paradox.

This paper responds to a piece of dialogue from Flora Nwapa’s novel Women are Different, in which Comfort mockingly says, “They took up the job voluntarily. Now you will soon tell us that they are celibate because of us.” There are two different interpretations of the use of “because,” and the claim is obviously false on only one of these.

I present a fictional and somewhat unpleasant tutorial. In it a use of the term “ideal political theory” is connected with the reflective equilibrium method: an ideal theory requires no adaptation of specific moral judgments to fit with the theory. I have not been in a tutorial closely resembling this, I should say.

This paper examines the debate between Marilyn Strathern and I.C. Jarvie. Writing in 1987, Strathern argues that the time is ripe for reincorporating Sir James Frazer. Jarvie thinks Strathern does so in a way that treats revolutions in anthropology as not involving scientific progress. There is a familiar defence against this charge while pursuing the same, or much the same, line of argument.

Charles Larmore presents the central part of Descartes’ first meditation as a brief dialogue between a skeptic and a sensible empiricist. I point out a source of discontent about this innovative transformation.