The aim of this article is to examine Frege’s view of the context principle in his mature philosophical doctrine. Here, the author argues that the context principle is embodied in the contextual explanation of value-ranges presented in Basic Laws of Arithmetic. The contextual explanation of value-ranges plays essentially the same role as the context principle in The Foundations of Arithmetic. It is supposed to show how a reference to natural numbers is possible. Moreover, the author argues against the view that (...) the context principle should be separated from the recarving thesis. This aspect of Frege’s view leads the author to the rejection of the purely referential view of the context principle, which is fairly widely accepted in the current literature. (shrink)

Kant’s moral philosophy both enjoins the acquisition of self-knowledge as a duty, and precludes certain forms of its acquisition via what has become known as the Opacity Thesis. This article looks at several recent attempts to solve this difficulty and argues that they are inadequate. I argue instead that the Opacity Thesis rules out only the knowledge that one has acted from genuine moral principles, but does not apply in cases of moral failure. The duty of moral self-knowledge (...) applies therefore only to one’s awareness of one’s status as a moral being and to the knowledge of one’s moral failings, both in particular actions and one’s overall character failings, one’s vices. This kind of knowledge is morally salutary as an aid to discovering one’s individual moral weakness as well as the subjective ends for which one acts, and in this way for taking up the morally required end of treating human beings as human beings. In this way, moral self-knowledge can be understood as a necessary element of moral improvement, and I conclude by suggesting several ways to understand it thereby as genuinely primary among the duties to oneself. (shrink)

In the Critique of Pure Reason, following his elucidation of the ‘postulates’ of possibility, actuality, and necessity, Kant makes a series of puzzling remarks. He seems to deny the somewhat metaphysically intuitive contention that the extension of possibility is greater than that of actuality, which, in turn, is greater than that of necessity. Further, he states that the actual adds nothing to the possible. This leads to the view, fairly common in the literature, that Kant holds that all modal categories, (...) in their empirical applications, are coextensive. I diverge from the common view. First, Kant is not committed to the coextensiveness thesis, understood as above. Instead, he espouses a weaker, epistemological version of the coextensiveness thesis, namely that what we can assert to be really possible is coextensive with what we cognize to be actual. Second, Kant's remarks are not intended to introduce a positive ontological thesis about the extensions of modal categories. Rather, he means to criticize a certain conception of modalities that was prevalent among his rationalist predecessors, i.e., the conception of modalities as various determinations that enter the intensions of concepts of things. (shrink)

The Uniqueness Thesis holds, roughly speaking, that there is a unique rational response to any particular body of evidence. We first sketch some varieties of Uniqueness that appear in the literature. We then discuss some popular views that conflict with Uniqueness and others that require Uniqueness to be true. We then examine some arguments that have been presented in its favor and discuss why permissivists find them unconvincing. Last, we present some purported counterexamples that have been raised against Uniqueness (...) and discuss some possible reasons why proponents of Uniqueness might find these similarly unconvincing. (shrink)

In the latter half of the twentieth century, philosophers of science have argued (implicitly and explicitly) that epistemically rational individuals might compose epistemically irrational groups and that, conversely, epistemically rational groups might be composed of epistemically irrational individuals. We call the conjunction of these two claims the Independence Thesis, as they together imply that methodological prescriptions for scientific communities and those for individual scientists might be logically independent of one another. We develop a formal model of scientific inquiry, define (...) four criteria for individual and group epistemic rationality, and then prove that the four definitions diverge, in the sense that individuals will be judged rational when groups are not and vice versa. We conclude by explaining implications of the inconsistency thesis for (i) descriptive history and sociology of science and (ii) normative prescriptions for scientific communities. (shrink)

This book presents a critical analysis of the semantic incommensurability thesis of Thomas Kuhn and Paul Feyerabend. In putting forward the thesis of incommensurability, Kuhn and Feyerabend drew attention to complex issues concerning the phenomenon of conceptual change in science. They raised serious problems about the semantic and logical relations between the content of theories which deploy unlike systems of concepts. Yet few of the more extreme claims associated with incommensurability stand scrutiny. The argument of this book is (...) as follows. The terms of theories with different concepts diverge semantically and the vocabularies of such theories may not be fully intertranslatable. Given the possibility of referential overlap between the terms of conceptually divergent theories, it does not follow that the content of such theories is incomparable. Nor, given the distinction between understanding a language and translation from one language into another, does it follow that the proponents of mutually untranslatable theories are unable to communicate. Neither is it the case that the shift between conceptually divergent theories involves a discontinuous transition between theories which have no common reference or that refer to distinct worlds of their own making. The semantic differences resulting from conceptual variance may be embraced within a thoroughly realist framework on which they are construed as diverse linguistic relations to a fixed and independent reality. -/- The book, which was originally published in 1994, has now been re-issued in the Routledge Revivals series. -/- . (shrink)

This unusually innovative book treats reflexivity, not as a philosophical conundrum, but as a practical issue that arises in the course of scholarly research and argument. In order to demonstrate the concrete and consequential nature of reflexivity, Malcolm Ashmore concentrates on an area in which reflexive "problems" are acute: the sociology of scientific knowledge. At the forefront of recent radical changes in our understanding of science, this increasingly influential mode of analysis specializes in rigorous deconstructions of the research practices and (...) textual products of the scientific enterprise. Through a series of detailed examinations of the practices and products of the sociology of scientific knowledge, Ashmore turns its own claims and findings back onto itself and opens up a whole new era of exploration beyond the common fear of reflexive self-destruction. (shrink)

The Qualitative Thesis says that if you leave open P, then you are sure of if P, then Q just in case you are sure of the corresponding material conditional. We argue the Qualitative Thesis provides compelling reasons to accept a thesis that we call Conditional Locality, which says, roughly, the interpretation of an indicative conditional depends, in part, on the conditional’s local embedding environment. In the first part of the paper, we present an argument—due to Ben (...) Holguín—showing that, without Conditional Locality, the Qualitative Thesis is in tension with a margin for error principle on rational sureness. We show Conditional Locality reconciles the Qualitative Thesis with the margin for error principle. In the second part, we argue the full range of data supports what we call the Strong Qualitative Thesis. Without Conditional Locality, the Strong Qualitative Thesis has unacceptable consequences. But with Conditional Locality, it is tenable. (shrink)

This entry introduces the Lockean Thesis and sketches the ways in which the lottery paradox, the preface paradox, and the problem of merely statistical evidence can be used to put pressure on the Lockean Thesis.

I spell out and update the individuality thesis, that species are individuals, and not classes, sets, or kinds. I offer three complementary presentations of this thesis. First, as a way of resolving an inconsistent triad about natural kinds; second, as a phylogenetic systematics theoretical perspective; and, finally, as a novel recursive account of an evolved character. These approaches do different sorts of work, serving different interests. Presenting them together produces a taxonomy of the debates over the thesis, (...) and isolates ways it has been productive. This goes to the larger point of this paper: a defense of the individuality thesis in terms of its utility, and an update of it in light of recent theoretical developments and empirical work in biology. (shrink)

The Termination Thesis (or “TT”) is the view that people go out of existence when they die. Lots of philosophers seem to believe it. Epicurus, for example, apparently makes use of TT in his efforts to show that it is irrational to fear death. He says, “as long as we exist, death is not with us; but when death comes, then we do not exist.”1 Lucretius says pretty much the same thing, but in many more words and more poetically: (...) “Death therefore to us is nothing, concerns us not a jot, since the nature of the mind is proved to be mortal; . . . when we shall be no more, when there shall have been a separation of body and soul, out of both of which we are each formed into a single being, to us, you may be sure, who then shall be no more, nothing whatever can happen to excite sensation.”. (shrink)

The unobservability thesis states that the mental states of other people are unobservable. Both defenders and critics of UT seem to assume that UT has important implications for the mindreading debate. Roughly, the former argue that because UT is true, mindreaders need to infer the mental states of others, while the latter maintain that the falsity of UT makes mindreading inferences redundant. I argue, however, that it is unclear what ‘unobservability’ means in this context. I outline two possible lines (...) of interpretation of UT, and argue that on one of these, UT has no obvious implications for the mindreading debate. On the other line of interpretation, UT may matter to the mindreading debate, in particular if we think of it as a thesis about the possible contents of perceptual experience. The upshot is that those who believe UT has implications for the mindreading debate need to be more specific about how they understand the thesis. (shrink)

In a penetrating investigation of the relationship between belief and quantitative degrees of confidence (or degrees of belief) Richard Foley (1992) suggests the following thesis: ... it is epistemically rational for us to believe a proposition just in case it is epistemically rational for us to have a sufficiently high degree of confidence in it, sufficiently high to make our attitude towards it one of belief. Foley goes on to suggest that rational belief may be just rational degree of (...) confidence above some threshold level that the agent deems sufficient for belief. He finds hints of this view in Locke’s discussion of probability and degrees of assent, so he calls it the Lockean Thesis.1 The Lockean Thesis has important implications for the logic of belief. Most prominently, it implies that even a logically ideal agent whose degrees of confidence satisfy the axioms of probability theory may quite rationally believe each of a large body of propositions that are jointly inconsistent. For example, an agent may legitimately believe that on each given occasion her well-maintained car will start, but nevertheless believe that she will eventually encounter a.. (shrink)

Abstract According to Habermas' colonization thesis, reification is a social pathology that arises when the communicative infrastructure of the lifeworld is 'colonized' by money and power. In this paper I argue that, thirty years after the publication of the Theory of Communicative Action, this thesis remains compelling. However, while Habermas offers a functionalist explanation of reification, his normative criticism of it remains largely implicit: he never explains what is wrong with reification from the perspective of the people whose (...) social relations are reified. As a result, Habermas cannot explain why only some forms of colonization lead to reification effects. In particular, he suggests that reification effects result from the juridification of communicatively structured domains of action but not from the commodification of labour power. I criticize this argument and suggest that if the normative dimension of the colonization thesis is made explicit, a more nuanced explanation of reification becomes possible. (shrink)

Øystein Linnebo and Richard Pettigrew have recently developed a version of non-eliminative mathematical structuralism based on Fregean abstraction principles. They argue that their theory of abstract structures proves a consistent version of the structuralist thesis that positions in abstract structures only have structural properties. They do this by defining a subset of the properties of positions in structures, so-called fundamental properties, and argue that all fundamental properties of positions are structural. In this article, we argue that the structuralist (...) class='Hi'>thesis, even when restricted to fundamental properties, does not follow from the theory of structures that Linnebo and Pettigrew have developed. To make their account work, we propose a formal framework in terms of Kripke models that makes structural abstraction precise. The formal framework allows us to articulate a revised definition of fundamental properties, understood as intensional properties. Based on this revised definition, we show that the restricted version of the structuralist thesis holds. 1Introduction 2The Structuralist Thesis 3LP-Structuralism 4Purity 5A Formal Framework for Structural Abstraction 6Fundamental Relations 7The Structuralist Thesis Vindicated 8Conclusion. (shrink)

Journal of Applied Philosophy, EarlyView.

While many scholars agree that the ‘‘separation thesis’’ (Freeman in Bus Ethics Quart 4(4):409–421, 1994)—that business issues and ethical issues can be neatly compartmentalized—is harmful to business ethics scholarship and practice, they also conclude that eliminating it is either inadvisable because of the usefulness of the positive/ normative distinction, or actually impossible. Based on an exploration of the fact/value dichotomy and the pragmatist and virtue theoretic responses to it, we develop an approach to eliminating the separation thesis that (...) integrates ‘‘business’’ with ‘‘ethics’’ while still permitting a positive/ normative distinction, which we call ‘‘ethics from observation.’’. (shrink)

I argue that physicians can save women from life-threatening pregnancies by performing a craniotomy, placentectomy, or salpingotomy without intending death or harm. To support this conclusion, I defend the relevance thesis about intentions (a person intends X only if X explains the action). I then criticize the identity thesis (if a person intends X and knows X is Y then the person intends Y) and three mistakenly strict moral principles: (1) one may not intend something that is a (...) serious harm for an innocent person, (2) one may not intend to terminate pregnancy before viability, which would prohibit, and (3) one may not act on a person’s body in a harmful way in order to benefit another person. (1) would prohibit procuring organs from living donors, (2) would prohibit treating hepatic pregnancies and other ectopic pregnancies, and (3) would prohibit procuring organs from living donors and performing many prenatal surgeries. (shrink)

Øystein Linnebo and Richard Pettigrew have recently developed a version of non-eliminative mathematical structuralism based on Fregean abstraction principles. They argue that their theory of abstract structures proves a consistent version of the structuralist thesis that positions in abstract structures only have structural properties. They do this by defining a subset of the properties of positions in structures, so-called fundamental properties, and argue that all fundamental properties of positions are structural. In this paper, we argue that the structuralist (...) class='Hi'>thesis, even when restricted to fundamental properties, does not follow from the theory of structures that Linnebo and Pettigrew have developed. To make their account work, we propose a formal framework in terms of Kripke models that makes structural abstraction precise. The formal framework allows us to articulate a revised definition of fundamental properties, understood as intensional properties. Based on this revised definition, we show that the restricted version of the structuralist thesis holds. (shrink)

Is business intimately related to ethics or can the two be separated? I argue that examining this question by focusing on how the two areas might be separated is logically flawed. Examining how business and ethics are connected, however, can bear fruit. This examination shows that business is a proper subset of ethics. Understanding this intimate connection has two practical benefits. It removes the seemingly incommensurable conflict between financial and ethical responsibilities of managers and it gives us new and positive (...) insights into Milton Friedman’s view that the social responsibility of business is to increase its profits. (shrink)

This is a response to an argument (by Michael McKinsey) purporting to show that anti-individualism is trivially true. I show that this argument rests upon a misconception of the basic claim of anti-individualism.

In this paper I deal with the relation between the disjunction thesis—that the truthmaking relation is distributed over a disjunction—and the necessary connection thesis—that the existence of some entities requires the existence of other distinct entities. I will first show that because of this very relation, the arguments for and against the disjunction thesis that overlook its metaphysical considerations will fail. Finally, I will show that the commitment produced by truthmaker maximalism to totality states of affairs, or (...) some relevantly similar things, requires one to accept a necessary connection that disaffirms the disjunction thesis. (shrink)

In earlier articles, the author developed what is known as the "Supersession Thesis," asserting that historic injustice may be overtaken by changes in circumstances so that a situation that was unjust when it was brought about may coincide with what justice requires at a later time. The Supersession Thesis was developed initially as a tool for considering historic injustice suffered by indigenous peoples in the European settlement of countries like Australia, Canada, New Zealand, and the United States. In (...) this paper, the author explores the application of the Supersession Thesis to issues about the Palestinian right of return and also to Israeli settlements in the Occupied Territories. The paper argues that, while it is not unthinkable that the Supersession Thesis might eventually legitimize the settlements and undermine the Palestinian right of return, there is no guarantee that this will happen. The application of the Supersession Thesis does not depend on the passage of time, but on changes in circumstances that a theory of justice makes relevant. Many of the circumstances that make the Supersession Thesis relevant to the post-colonial situations described do not apply in the Israeli situation. Nevertheless, it is worth considering the possibility of applying the Supersession Thesis in this case, because it enables us to assess the merits of the Thesis more sharply in relation to injustice that is taking place now, as opposed to injustice that took place in the nineteenth century. (shrink)

This paper begins by presenting a simple model that maps some salient positions on the topic of cinema as philosophy, including the very strong claims that are constitutive of what has been stipulated to be “the bold thesis.” It is contended that examples that have been adduced in the literature as substantiating that bold thesis in fact only support weaker claims. It is argued in favor of accepting some such theses on the topic. It is then introduced a (...) number of variables that might be worth keeping in mind as we ponder the philosophical merits or demerits of various cinematic works. (shrink)

The historiographic tradition of the history of science that originated with Auguste Comte bears all the marks of narratives with roots in the Enlightenment, such as a view of religion as an underdeveloped stage in the ascending road in humanity's quest for a more mature understanding. This article explores the development of the peripheral branch of a tradition that developed in Argentina by the mid‐twentieth century with authors such as the Italians Aldo Mieli, José Babini, and the Hungarian Desiderius Papp. (...) It is argued that, contrary to the historiographic program of the conflict thesis developed in English‐speaking countries, those scholars who cultivated the kind of “positivist” history of science that thrived in continental Europe were inclined to see science as a social and epistemological replacement of a fossilized religious outlook. In the final section, I suggest a way to relate the more or less strong versions of the conflict thesis to different patterns of secularization. (shrink)

It is widely considered a truism that the only evidence that can provide justification for one's belief that p is evidence in one's possession. At the same time, a good many epistemologists accept another claim seemingly in tension with this "truism," to the effect that evidence not in one's possession can defeat or undermine the justification for one's belief that p. Anyone who accepts both of these claims accepts what I will call the asymmetry thesis: while evidence in one's (...) possession can either enhance or detract from justification, evidence not in one's possession can only detract from it. The asymmetry thesis is not uncontroversial; but any epistemologist who endorses the doctrine of normative defeat will be under tremendous pressure to accept it. In this paper I try to motivate the asymmetry thesis in two steps: first, by appeal to a feature that assessments of justification share with evaluative assessments generally, according to which we can distinguish generic expectations in play from the explicit criteria for satisfying the relevant evaluative standard; and second, by arguing that when it comes to epistemic assessments, the generic expectations themselves derive from our roles as epistemic agents in communities in which we depend on one another for knowledge. (shrink)

According to the Asymmetry Thesis, whereas there are many kinds of argument-forms that make at least some of their instances valid, there is none that makes any of its instances invalid. To refute this thesis, a counterexample has been produced in the form of an argument-form whose premise-form's instances are all logically true and whose conclusion form's instances are all logically false. The purpose of this paper is to show that there are many more kinds of argument-forms that (...) make some of their instances invalid and that, hence, are counterexamples refuting the Asymmetry Thesis. (shrink)

This dissertation examines the relationship between ignorance and responsibility. Ignorance is often treated as an excuse, but there are times when ignorance does not excuse. Ignorance that does not excuse is usually known as culpable ignorance. Since ignorance is largely an epistemological concept, the difference between culpable and exculpating ignorance suggests a connection between epistemology and theories of responsibility that has gone relatively unexplored. The following work explores this connection and argues that incorporating epistemological theories will help provide a robust (...) account of both the ignorance excuse and culpable ignorance. -/- The project begins by pointing out that some highly intuitive accounts of culpable ignorance seem remarkably like theories of epistemic justification. As such, epistemic justification seems like the best candidate for an epistemological concept that might share a connection with the culpable ignorance literature in moral philosophy. I argue that there is a theory of epistemic justification that captures our intuitions regarding culpable ignorance. Its close connection to our practices gives us good reason to think that, if this theory of justification is right, then the following is true: one’s ignorance exculpates only if it is justified, and one’s ignorance is culpable only if it is not justified. I call this the Justification Thesis. Once I establish the Justification Thesis, I defend it against various possible objections. First, the Justification Thesis is a derivative account of culpable ignorance, and it is often thought that derivative accounts are forced into responsibility skepticism. I argue that this is not true. Second, it is often thought derivative accounts like the Justification Thesis are open to a large class of counterexamples. I examine a few common alleged counterexamples and argue that they trade on ambiguities that, I suggest, are shared by every purported counterexample. When disambiguated it turns out they are not counterexamples after all. Third, some question whether ignorance with moral content exculpates. I argue that the Justification Thesis captures our intuitions regarding moral ignorance. Finally, I address a challenge to the initial assumption that culpable ignorance does not excuse and argue that this challenge is mistaken. (shrink)

Hans Kelsen’s purity thesis is the basic methodological principle of the Pure Theory of Law. Indeed, it is no exaggeration to say that virtually everything that is peculiar to Kelsen’s legal theory stems from the purity thesis. This includes Kelsen’s normativism or non‐naturalism and his polemic against various dualisms in legal science. I set out Kelsen’s position on these issues after looking at the nomenclature of purity in his writings as well as the philosophical and contextual sources of (...) purity as he understands them. (shrink)

The Uniqueness Thesis (U), according to Richard Feldman and Roger White, says that for a given set of evidence E and a proposition P, only one doxastic attitude about P is rational given E. Luis Rosa has recently provided two counterexamples against U which are supposed to show that even if there is a sense in which choosing between two doxastic attitudes is arbitrary, both options are equally and maximally rational. Both counterexamples work by exploiting the idea that ‘ought (...) implies can’ and trying to spell out situations in which some inferences are beyond the capabilities of some reasoners. I argue that on a descriptive account of doxastic rationality, questions of whether ‘epistemic ought implies can’ can be bracketed and that at least one of the inferential moves that Rosa describes in his cases is irrational. I further argue that a descriptive account of doxastic rationality is the appropriate notion of rationality that is to be considered when evaluating U. If my argument for a descriptive account of rationality is successful, then we have reason to revise our use of the term rationality to fit this descriptive understanding. (shrink)

In his 1993 article ‘The Coming Technological Singularity: How to survive in the posthuman era’ the computer scientist Virnor Vinge speculated that developments in artificial intelligence might reach a point where improvements in machine intelligence result in smart AI’s producing ever-smarter AI’s. According to Vinge the ‘singularity’, as he called this threshold of recursive self-improvement, would be a ‘transcendental event’ transforming life on Earth in ways that unaugmented humans are not equipped to envisage. In this paper I argue Vinge’s idea (...) of a technologically led intelligence explosion is philosophically important because it requires us to consider the prospect of a posthuman condition succeeding the human one. What is the ‘humanity’ to which the posthuman is ‘post’? Does the possibility of a posthumanity presuppose that there is a ‘human essence’, or is there some other way of conceiving the human-posthuman difference? I argue that the difference should be conceived as a historically emergent disconnection between individuals, not in terms of the presence or lack of essential properties. I also suggest that these individuals should not be conceived in narrow biological terms but in ‘wide’ terms permitting biological, cultural and technological relations of descent between human and posthuman. Finally, I consider the ethical implications of this metaphysics of the posthuman. If, as I claim, the posthuman difference is not one between kinds but between individuals, we cannot specify its nature a priori but only a posteriori. Thus the only way to evaluate the posthuman condition would be to witness the emergence of posthumans. The implications of this are somewhat paradoxical. We are not currently in a position to evaluate the posthuman condition. Since there are no posthumans, the condition of posthumanity is not defined. However, posthumans could result from some iteration of our current technical activity, so we have an interest in understanding what they might be like. It follows that we have an interest in making or becoming posthumans. (shrink)

Several noted political theorists have argued that a state can be legitimate even if it does not generate in its citizens an obligation to obey the law. I argue that this claim is false. All plausible analyses of political legitimacy either build in the concept of political obligation, or else incorporate claims that require some account of political obligation. In either case, political legitimacy is possible only when a state successfully generates in its citizens an obligation to obey the law.

The so-called `no-thesis' view is without a doubt one of the most immediately puzzling philosophical features of Nāgārjuna's thought and also largely responsible for ascribing to him either sceptical or mystical leanings (or indeed both). The locus classicus for this view is found in verse 29 of the Vigrahavyāvartanī: “If I had some thesis the defect [just mentioned] would as a consequence attach to me. But I have no thesis, so this defect is not applicable to me.” (...) That this absence of a thesis is to be regarded as a positive feature is stressed in a passage from the Yuktiṣaṣṭikā, where Nāgārjuna remarks about the Buddhas: “For these great beings there is no position, no dispute. How could there be another's [opposing] position for those who have no position?” Now it is important to observe that when considered in isolation it is very hard to make any coherent sense of these passages. For even if we assume that the Buddhas do not hold any philosophical position anymore (having perhaps passed beyond all conceptual thinking), how are we to make sense of the first quotation which, in the middle of a work full of philosophical theses claims that there is no such thesis asserted at all? (shrink)

In this dissertation I defend the claim, long held by Donald Davidson, that truth is a primitive concept that cannot be correctly or informatively defined in terms of more basic concepts. To this end I articulate the history of the primitive thesis in the 20th century, working through early Moore, Russell, and Frege, and provide improved interpretations of their reasons for advancing and eventually abandoning the primitive thesis. I show the importance of slingshot-style arguments in the work of (...) Frege, Church, Davidson, and Gödel for resisting certain versions of the correspondence theory of truth. I argue that most slingshots fail to convincingly establish a collapsing conclusion, but that a Gödelian version of the slingshot is terminal to certain varieties of the correspondence theory of truth. I then provide a Davidsonian theory of truth and interpretation that is consistent with and makes use of the primitive thesis. Finally, I provide an account of predication, properties, and universals that I argue is both serviceable and consistent with Davidson’s overall program. (shrink)

The Ethical Thesis: Practical Reason in Islamic Legal Hermeneutics. By Abdessamad BelhaJ. Documenta et Monographiae, vol. 8. Piliscsaba, Hungary: Avicenna institute of Middle Eastern Studies, 2015. Pp. 199. €38.80.

According to what Barry Dainton calls the 'Strong Introspectibility thesis', it is a necessary truth that mental states S and S* are co-conscious (experienced together) if and only if they are 'jointly introspectible', i.e., if and only if it is possible for there to be some single state of introspective awareness that represents both S and S*. Dainton offers two arguments for the conclusion that joint introspectibility is unnecessary for co-consciousness. In these comments I attempt to show, first, that (...) Dainton's arguments fail, and, second, that joint introspectibility is actually insufficient for co-consciousness. (As to whether it is also unnecessary, I take no stance.). (shrink)