In this paper my primary aim is to present a logical system of practical reasoning that can be used to assess the validity of practical arguments, that is, arguments with a practical judgment as conclusion. I begin with a critical evaluation of other approaches to this issue and argue that they are inadequate. On the basis of these considerations, I explain in Sect. 2 the informal conception of practical validity and introduce in Sect. 3 the logical system P , which (...) is an extension of propositional logic and can be used to assess the validity of a wide range of practical arguments. In the last section, I apply this system to some examples of practical reasoning in order to demonstrate how it can be used in practice. (shrink)

In Reasons Without Persons, Brian Hedden argues that a theory of rationality need not provide diachronic norms for reasoning, since we can explain all we need to explain about rationality using purely synchronic norms. This article argues that a theory of rationality should contain at least one diachronic norm for reasoning, namely a norm to fill in the details of one's coarse-grained or partial plans. It also explores a possible synchronic approach to this aspect of rationality.

I argue that particularism (or holism) about reasons, i.e., the view that a feature that is a reason in one case need not be a reason in another case, is true, but uninterestingly so. Its truth is best explained by principles that govern a weaker notion than that of being a reason: one thing can be ‘normatively connected’ to something else without its being a reason for what it is normatively connected to. Thus, even though true, particularism about reasons does (...) not support the particularist’s general idea that the normative domain is not governed by principles. (shrink)

ABSTRACT: I offer a refutation of the standard argument according to which we have no doxastic obligation because we do not have the kind of voluntary control over our beliefs required for having obligations. I then propose an interpretation of the distinction between epistemic and practical reasons for belief which can be generalised to other attitudes such as intention, and seems to imply that mental acts such as judgements and decisions never count as intentional actions, and that these two sorts (...) of reasons are incommensurable. (shrink)

Our ambivalent attitudes toward the notion of ‘a life worth living’ present a philosophical puzzle: Why are we of two minds about the birth of a severely disabled child? Is the child’s life worth living or not worth living? Between these two apparently incompatible evaluative judgments, which is true? If one judgment is true and the other false, what makes us continue to find both evaluations appealing? Indeed, how can we manage to hold these inconsistent judgments simultaneously at all? I (...) critically examine two solutions to this puzzle: the hidden-indexical account and Velleman’s anti-realist account. I propose an alternative explanation which appeals to (a) state-given, as opposed to object-given, reasons for belief and (b) the distinction between belief and acceptance. I argue that (1) the fact that a severely disabled life is not worth living provides object-given reason to believe that that life is not worth living, but (2) after the birth of a severely disabled child, the psychological utility of positive evaluation gives us a state-given reason to believe that that child’s life is worth living, and a reason to accept that, in our relation with the child, her life is worth living. I conclude by drawing a practical lesson about wrongful life suits. (shrink)

In this paper I present an account of the rational abilities that make our decisions free. Following the lead of new dispositionalists, a leeway account of free decisions is developed, and the rational abilities that ground our abilities to decide otherwise are described in detail. A main result will be that the best account of the relevant rational abilities makes them two-way abilities: abilities to decide to do or not to do x in accordance with one’s apparent reasons. Dispositionalism about (...) rational abilities will be vindicated, since it helps to see why and how these two-way abilities entail an ability to decide otherwise and, thus, free will. (shrink)

This paper argues that practical reasoning is a mental process which leads a person from a set of existent mental states to an intention. In Section 1, I defend this view against two other proposals according to which practical reasoning either concludes in an action itself or in a normative belief. Section 2 discusses the correctness of practical reasoning and explains how the correctness of instrumental reasoning can be explained by the logical relations that hold between the contents of the (...) mental states. In Section 3, I explore the correctness of normative practical reasoning. I conclude with the sceptical view that correct practical reasoning cannot require us to intend to do what we believe we ought to do. (shrink)

There are mental actions, and a number of epistemic attitudes involve activity. But can there be epistemic agency? I argue that there is a limit to any claim that we can be epistemic agents, which is that the structure of reasons for epistemic attitudes differs fundamentally from the structure of reasons for actions. The main differences are that we cannot act for the wrong reasons although we can believe for the wrong reasons, and that reasons for beliefs are exclusive in (...) a sense in which our reasons for actions are not. Epistemic agency is possible in the weak sense that we can be active, but not in the strong one in which we could have some elbow room for our epistemic reasons in reasoning leading to beliefs and other epistemic states. (shrink)

An autonomous reason for intending to A would be a reason for so intending that is not, and will not be, a reason for A-ing. Some puzzle cases, such as the one that figures in the toxin puzzle, suggest that there can be such reasons for intending, but these cases have special features that cloud the issue. This paper describes cases that more clearly favour the view that we can have practical reasons of this sort. Several objections to this view (...) are considered and rejected. Finally, it is considered whether the existence of such reasons would conflict with an attractive coherence principle linking the rationality of intending with that of acting as intended. The paper concludes with a qualified affirmation of autonomous reasons for intending. (shrink)

Fitting Attitudes accounts of value analogize or equate being good with being desirable, on the premise that ‘desirable’ means not, ‘able to be desired’, as Mill has been accused of mistakenly assuming, but ‘ought to be desired’, or something similar. The appeal of this idea is visible in the critical reaction to Mill, which generally goes along with his equation of ‘good’ with ‘desirable’ and only balks at the second step, and it crosses broad boundaries in terms of philosophers’ other (...) commitments. For example, Fitting Attitudes accounts play a central role both in T.M. Scanlon’s [1998] case against teleology, and in Michael Smith [2003], [unpublished] and Doug Portmore’s [2007] cases for it. And of course they have a long and distinguished history. (shrink)