John Collins

Externalism about mental content is the thesis that the contents of an individual's mental states are fixed, not just by the intrinsic characteristics of the individual, but also by the external circumstances of the individual. Externalism has been argued by some to be incompatible with a subject having direct and authoritative introspective knowledge of the contents of his occurrent thoughts, since the introspectable evidence underdetermines the content of the thought. While this has been disputed, there is nearly a consensus that externalism entails that in some circumstances a subject win not be in a position to tell by introspection whether two of her thoughts have the same or different contents. However, in order to infer reliably in accordance with valid inference rules, one must be able to compare the contents of thoughts or premises that one is entertaining. Furthermore, our folk psychological principles of explanation and prediction frequently presuppose that people can compare the contents of their beliefs, desires and intentions when engaged in practical reasoning. If introspective knowledge of comparative content is undermined, it would seem that our norms of rational and folk psychology have been undermined. ;In this dissertation, I consider whether externalism indeed raises the difficulties it is alleged to, and conclude that it does entail that in some circumstances subjects will be unable to recognize invalid inferences as such, and that some folk psychological principles are incompatible with externalism. However, I think that the problems that arise cannot all be laid at externalism's door, and are not serious enough to warrant the rejection of externalism anyhow. I will also briefly explore the consequences of my defense of externalism with respect to the debate over the compatibility of externalism and introspective self-knowledge.

Horwich (1998) seeks to undermine the familiar truth-theoretic approach to meaning, as championed by Davidson. Horwich’s criticism has two chief parts: (i) the Davidsonian approach commits a common constitution fallacy under which the form of the explanans (in this case, truth theoretic clauses and theorems) is constrained to respect the form of the explanandum (in this case, ‘meaning facts’) and (ii) that compositionality can be explained independently of a concept of truth, and so the putative central plank of Davidson’s argument is removed. This paper seeks to show that these claims are premised upon a systematic misreading of the Davidsonian approach. First, the very idea of a constitution fallacy has no application to the truth-theoretic approach, for meaning is simply not analysed under it. Second,compositionality is properly understood to be a general, independent constraint on theories of meaning, not a consequence of any particular approach. Moreover, I shall show that Horwich’s format for explaining compositionality independently of truth fails to meet certain elementary constraints.

My contribution takes up a set of methodological and philosophical issues in linguistics that have recently occupied the work of Devitt and Rey. Devitt construes the theories of generative linguistics as being about an external linguistic reality of utterances, inscriptions, etc.; that is, Devitt rejects the ‘psychologistic’ construal of linguistics. On Rey’s conception, linguistics concerns the mental contents of speaker / hearers; there are no external linguistic items at all. I reject both views. Against Devitt, I argue that the philosophical issues in linguistics should be framed in terms of the theories themselves, not pre-theoretical conceptions front either philosophy or commonsense as to what linguistics is about or what a language is. In this light, I suggest that Devitt’s key arguments (concerning parameter setting, psychological reality, and the role of intuitions) do not make sense of current linguistic inquiry and so do not offer an adequate philosophical basis of that work. To this extent, I agree with Rey. Ourdifferences emerge over the putative role of content in linguistic inquiry and how the concept of computation ought to be understood. Following the lead of Chomsky’s recent philosophical remarks, I argue that a theory of the language faculty should be understood as an abstract specification of the function that pairs ‘sound’ with ‘meaning’ rather than as a specification of the content the mind represents. But doesn’t ‘computation’ presuppose ‘representation’? I argue for a negative answer, at least if ‘representation’ is read intentionally. A ‘representation’ can be construed as brain structure that, at the present stage of inquiry, can only be picked out via the abstract concepts of linguistic theory. We are entitled to posit such structures insofar as they earn their explanatory keep over the output of the faculty. The linguistic function is a way of setting the boundary conditions on what the brain must be doing such that humans get to be competent speaker / hearers, although we do not therefore take the function to be a story of the causal spring of linguistic performance.

Chomsky's competence/performance distinction has been traditionally understood as a distinction between our knowledge of language and how we put that knowledge to use. While this construal has its purposes, this article argues that the distinction as Chomsky proposes it depends upon no substantiation of the knowledge locution; rather, the distinction is intended to abstract one system out of an ensemble of systems whose integration underlies performance. The article goes on to assess and reject an argument that the knowledge locution, independent of its traditional construal, is of some substance due to the peculiar evidential base of generative theories.

Jerry Fodor, among others, has maintained that Chomsky's language faculty hypothesis is an epistemological proposal, i.e. the faculty comprises propositional structures known (cognized) by the speaker/hearer. Fodor contrasts this notion of a faculty with an architectural (directly causally efficacious) notion of a module. The paper offers an independent characterisation of the language faculty as an abstractly specified nonpropositional structure of the mind/brain that mediates between sound and meaning—a function in intension that maps to a pair of structures that determine soundmeaning convergence. This conception will be elaborated and defended against a number of likely complaints deriving from Fodor's faculty/module distinction and other positions which seek to credit knowledge of language with an empirical or theoretical significance. A recent explicit argument from Fodor that Chomsky must share his conception will be diagnosed and the common appeal to implicit knowledge as a foundation for linguistic competence will be rejected.

Experimental philosophy is one of the most exciting and controversial philosophical movements today. This book explores how it is reshaping thought about philosophical method. Experimental philosophy imports experimental methods and findings from psychology into philosophy. These fresh resources can be used to develop and defend both armchair methods and naturalist approaches, on an empirical basis. This outstanding collection brings together leading proponents of this new meta-philosophical naturalism, from within and beyond experimental philosophy. They explore how the empirical study of philosophically relevant intuition and cognition transforms traditional philosophical approaches and facilitates fresh ones. Part One examines important uses of traditional "armchair" methods which are not threatened by experimental work and develops empirically informed accounts of such methods that can potentially stand up to experimental scrutiny. Part Two analyses different uses and rationales of experimental methods in several areas of philosophy and addresses the key methodological challenges to experimental philosophy: Do its experiments target the intuitions that matter in philosophy? And how can they support conclusions about the rights and wrongs of philosophical views? Essential reading for students of experimental philosophy and metaphilosophy, _Experimental Philosophy, Rationalism, and Naturalism_ will also interest students and researchers in related areas such as epistemology and the philosophies of language, perception, mind and action, science and psychology.

I argue for a cognitive architecture in which folk psychology is supported by an interface of a ToM module and the language faculty, the latter providing the former with interpreted LF structures which form the content representations of ToM states. I show that LF structures satisfy a range of key features asked of contents. I confront this account of ToM with eliminativism and diagnose and combat the thought that "success" and innateness are inconsistent with the falsity of folk psychology. I show that, while my ensemble account of ToM and language refutes the culturalist presuppositions that tend to underlie eliminativist arguments, the falsity of folk psychology is consistent with the account.

Griffiths and Machery (2008) argue that innateness is a?folk biological? notion, which, as such, has no useful reconstruction in contemporary biology. If this is so, not only is it wrong to identify the vernacular notion with the precise theoretical concept of canalization, but worse, it would appear that many of the putative scientific claims for particular competences and capacities being innate are simply misplaced. The present paper challenges the core substantive claim of Griffiths and Machery's position, namely, that innateness understood on canalization lines as environment-independent development (somehow and to some degree) is a confused, outmoded notion. It will be contended that the modality-independence of language offers a prima facie case against Griffiths and Machery's general position.

So-called ‘generics’ are members of a diverse class of constructions that express generalisations that do not directly involve any precise cardinality of individuals, but rather the kinds or ‘typical’ or ‘normal’ members of the kinds contributed by arguments of the predicate. The paper argues that genericity as a unitary phenomenon of human thought has a psychological, rather than linguistic, basis. This claim is argued for by way of a survey of the linguistic diversity of the forms of genericity, and the presentation of a psychological model from recent experimental work done by Prasada and Dillingham that promises to confer unity on the genericity phenomena while explaining how the linguistic diversity relates to a single cognitive representation of a form of generality.

The paper outlines the evolution of on-going meta-philosophical debates about intuitions, explains different notions of 'intuition' employed in these debates, and argues for the philosophical relevance of intuitions in an aetiological sense taken from cognitive psychology. On this basis, it advocates a new kind of methodological naturalism which it finds implicit, for instance, in the warrant project in experimental philosophy: a meta-philosophical naturalism that promotes the use of scientific methods in meta-philosophical investigations. This 'higher-order' naturalism is consistent with both methodological naturalism and methodological rationalism about first-order philosophy, and can help us adjudicate between the two, in a piecemeal manner.

There is an incompatibility between the deflationist approach to truth, which makes truth transparent on the basis of an antecedent grasp of meaning, and the traditional endeavour, exemplified by Davidson, to explicate meaning through of truth. I suggest that both parties are in the explanatory red: deflationist lack a non-truth-involving theory of meaning and Davidsonians lack a non-deflationary account of truth. My focus is on the attempts of the latter party to resolve their problem. I look in detail at Davidson's more recent work and suggest that it seeks to articulate a primitive notion of truth that may balance between a notion that collapses into deflationism and one that is wholly subsumed under a general theory of interpretation. I conclude that this tightrope walk is ultimately unsuccessful. Equally, however, some reasons are provided for thinking that deflationism might be equally unsuccessful with its problem. 'Truth or meaning?' remains an open question.

Jerry Fodor argues that the massive modularity thesis – the claim that (human) cognition is wholly served by domain specific, autonomous computational devices, i.e., modules – is a priori incoherent, self-defeating. The thesis suffers from what Fodor dubs the input problem: the function of a given module (proprietarily understood) in a wholly modular system presupposes non-modular processes. It will be argued that massive modularity suffers from no such a priori problem. Fodor, however, also offers what he describes as a really real input problem (i.e., an empirical one). It will be suggested that this problem is real enough, but it does not selectively strike down massive modularity – it is a problem for everyone.

Do lexical items have internal structure that contributes to, or determines, the stable interpretation of their potential hosts? One argument in favour of the claim that lexical items are so structured is that certain putative verbs appear to be ‘impossible’, where the intended interpretation of them is apparently precluded by the character of their internal structure. The adequacy of such reasoning has recently been debated by Fodor and Lepore and Johnson, but to no apparent resolution. The present paper argues that such ‘impossible word arguments' for internal lexical structure, although not apodictic, do constitute inferences to the best explanation for such structure. Alternative explanations for the ‘impossible words' are considered and rejected.

It is widely held that propositions are structured entities. In The Nature and Structure of Content (2007), Jeff King argues that the structure of propositions is none other than the syntactic structure deployed by the speaker/hearers who linguistically produce and consume the sentences that express the propositions. The present paper generalises from King’s position and claims that syntax provides the best in-principle account of propositional structure. It further seeks to show, however, that the account faces severe problems pertaining to the fine individuation of propositions that the account entails. The ‘fineness of cut’ problem has been raised by Collins (The unity of linguistic meaning, 2007) and others. King (Philos Stud 163(3):763–781, 2013) responds to these complaints in ways this paper rebuts. Thus, the very idea of structured propositions is brought into doubt, for the best in-principle account of such structure appears to fail.

Davidson has given us two theses: Tarski's format for truth definitions provides a format for theories of meaning and that the justification for a theory of language L as one of meaning is based upon the theory affording an informative interpretation of L-speakers. It will be argued, on the basis of a consideration of compositionality, that the Tarski format can indeed be re-jigged in line with. On the other hand, in opposition to, I shall commend a cognitive understanding of semantic competence under which interpretation is at best of marginal interest. In defence of this move, it will be argued that once compositionality and other commonly held constraints are recognised as being in fact empirical ones, then no principled distinction can be made between them and other constraints which militate against semantic competence being socially constituted.

Borg (2009) surveys and rejects a number of arguments in favour of semantic internalism. This paper, in turn, surveys and rejects all of Borg's anti-internalist arguments. My chief moral is that, properly conceived, semantic internalism is a methodological doctrine that takes its lead from current practice in linguistics. The unifying theme of internalist arguments, therefore, is that linguistics neither targets nor presupposes externalia. To the extent that this claim is correct, we should be internalists about linguistic phenomena, including semantics.