Fritz Allhoff has recently offered an extremely compelling challenge to the morality of human cloning. He argues that a biological phenomenon, that of telomere shortening, undermines the moral permissibility of human cloning. Telomere shortening is caused by cell replication, and appears to be one of the central reasons that cells and organisms age and die. Allhoff considers a thirty-year-old woman who wishes to create a genetic clone. He notes that the DNA from her cell that would be used to create (...) the clone would have shortened telomeres—as it would have gone through many generations of cell replication. As a result, the clone would begin its existence with shortened telomeres; the clone’s telomeres would be the same length as the woman’s telomeres at the time of cloning. The moral problem lies in the fact that because of shortened telomeres, the clone will senesce more rapidly as compared with noncloned organisms, and would have increased susceptibility to degenerative conditions and diseases. Allhoff then goes on to argue that earlier senescence and disease susceptibility constitute a moral ground for rejecting cloning because “the life of a clone would be worse than that of a non-clone”. This line of argument is rooted in Parfit’s The Same Number Quality Claim : “If in either of two outcomes the same number of people would ever live, it would be bad if those who live are worse off, or have a lower quality of life, than those who would have lived”. Applying Parfit’s Q principle to cases of cloning, it could be argued that parents ought to produce children that would be maximally well off, and since clones would be worse off than children produced “normally,” it follows that parents should avoid cloning. As Allhoff puts it, “obviously sexual reproduction would not transfer shortened telomeres to offspring so, all else being equal, sexual reproduction is better than cloning ”. For this sort of line to pack any moral punch, Q must be interpreted rather strongly. (shrink)

Let N, O and S denote the set of nonnegative integers, the graph of the constant 0 function and the graph of the successor function respectively. For sets $P, Q, R \subseteq N^2$ operations of transposition, composition, and bracketing are defined as follows: $P^\cup = \{\langle x, y\rangle | \langle y, x\rangle \epsilon P\}, PQ = \{\langle x, z\rangle| \exists y\langle x, y\rangle \epsilon P & \langle y, z\rangle \epsilon Q\}$ , and [ P, Q, R] = ∪n ε M(PnQR (...) n). THEOREM. The class of recursively enumerable subsets of N2 is the smallest class of sets with O and S as members and closed under transposition, composition, and bracketing. This result is derived from a characterization by Julia Robinson of the class of general recursive functions of one variable in terms of function composition and "definition by general recursion." A key step in the proof is to show that if a function F is defined by general recursion from functions A, M, P and R then F = [ P∪, A∪ M, R]. The above definitions of the transposition, composition, and bracketing operations on subsets of N2 can be generalized to subsets of X2 for an arbitrary set X. In this abstract setting it is possible to show that the bracket operation can be defined in terms of K, L, transposition, composition, intersection, and reflexive transitive closure where K: X → X and L: X → X are functions for decoding pairs. (shrink)

Since Darwin, the idea of psychological continuity between humans and other animals has dominated theory and research in investigating the minds of other species. Indeed, the field of comparative psychology was founded on two assumptions. First, it was assumed that introspection could provide humans with reliable knowledge about the causal connection between specific mental states and specific behaviors. Second, it was assumed that in those cases in which other species exhibited behaviors similar to our own, similar psychological causes were at (...) work. In this paper, we show how this argument by analogy is flawed with respect to the case of second‐order mental states. As a test case, we focus on the question of how other species conceive of visual attention, and in particular whether chimpanzees interpret seeing as a mentalistic event involving internal states of perception, attention, and belief. We conclude that chimpanzees do not reason about seeing in this manner, and indeed, there is considerable reason to suppose that they do not harbor representations of mental states in general. We propose a reinterpretation model in which the majority of the rich social behaviors that humans and other primates share in common emerged long before the human lineage evolved the psychological means of interpreting those behaviors in mentalistic terms. Although humans, chimpanzees, and most other species may be said to possess mental states, humans alone may have evolved a cognitive specialization for reasoning about such states. (shrink)

With the increase in the costs of providing education and concerns about financial responsibility, heightened consideration of accountability and results, elevated awareness of the range of teacher skills and student learning styles and needs, more focus is being placed on the promises offered by online software and educational technology. One of the most heavily marketed, exciting and controversial applications of edtech involves the varied educational programs to which different students are exposed based on how big data applications have evaluated their (...) likely learning profiles. Characterized most often as ‘personalized learning,’ these programs raise a number of ethical concerns especially when used at the K-12 level. This paper analyzes the range of these ethical concerns arguing that characterizing them under the general rubric of ‘privacy’ oversimplifies the concerns and makes it too easy for advocates to dismiss or minimize them. Six distinct ethical concerns are identified: information privacy; anonymity; surveillance; autonomy; non-discrimination; and ownership of information. Particular attention is paid to whether personalized learning programs raise concerns similar to those raised about educational tracking in the 1950s. The paper closes with discussion of three themes that are important to consider in ethical and policy discussions. (shrink)

Palimpsests of Themselves is an intervention in current discussions about the fate of philosophy in postclassical Islamic intellectual history. It takes up the most advanced logic textbook of Muslim South Asia, The Ladder of the Sciences, as a case study and engages its legacy in three ways. In addition to presenting the first full translation and extended commentary in English, Asad Q. Ahmed offers detailed assessments of the technical contributions of the work, explores the social and institutional settings of the (...) vast commentarial response it elicited, and develops a theory of the philosophical commentary that is internal to the tradition. The technical, social, and theoretical approaches to the commentarial text complicate presuppositions upon which questions of Islam's intellectual decline are erected. As such, Ahmed offers a unique and powerful opportunity to understand the transmission of knowledge across the Islamic world. (shrink)

Liz JacksonEducation University of Hong KongNel Noddings is known around the world for her contributions to philosophy and philosophy of education. Her work on caring and relational ethics broke ne...

The condition, known as mirror-touch synesthesia, is related to the activity of mirror neurons, cells recently discovered to fire not only when some animals perform some behavior, such as climbing a tree, but also when they watch another animal do the behavior. For "synesthetes," it's as if their mirror neurons are on overdrive.

This book offers for the first time a complete scholarly translation, commentary, and glossary in a modern European language of the logic section of Avicenna's very important compendium al-Naj=at.

Recent studies demonstrate a moral self effect: continuity in moral values is crucial to ascriptions of identity in and over time. Since Locke, personal identity has been referred to as a ‘forensic’ concept, meaning that it plays a role in attributions of moral responsibility. If moral values are crucial to identity over time, then perceived changes in a person’s set of values may reduce responsibility for past deeds. To test this, we examined the moral self effect in parole contexts. In (...) this empirical article, we conducted two experiments, in which participants were significantly more likely to grant parole to agents who underwent a moral change as opposed to mere behavioral change. We conclude by discussing possible objections and implications of these philosophical results for the Lockean view of personal identity. -/- . (shrink)

One debate that occupied Pratyabhijñā philosophers and their Buddhist interlocutors was the question of the reality of _sambandha_, or relation. A central treatise on the topic is Utpaladeva’s (∼10th c.) _Sambandhasiddhi_ [SS] (‘_Proof of Relation_’), a response to Dharmakīrti’s (∼7th c.) _Sambandhaparīkṣā_ [SP] (‘_Analysis of Relation_’). As the contrasting titles suggest, Dharmakīrti held that relations are merely conceptual constructions (_kalpanā_), inferred _post hoc_ from discrete perceptual cognitions (_pratyakṣa_)—and thus ultimately _unreal_. Utpaladeva, on the other hand, attempted to ‘prove’ (_siddhi_) the (...) truth (_satya_) of relation as a genuine ‘division-non-division,’ or ‘unity-in-diversity’ (_bhedābheda_). In this article, I reconstruct Utpala’s ‘proof’ as a pragmatic argument to the effect that Dharmakīrti, in virtue of his nominalist metaphysics, mistakenly treats the general form of relation as an inferential _concept_, rather than the mode of ‘intentional’ _action_ (_śakti_) manifest in reflexive judgment (_vimarśa_). In doing so, Utpala suggests that Dharmakīrti inadvertently renders the relational conditions for the recognition of determinate intentional content unintelligible. (shrink)

We argue that it is neither necessary nor sufficient for a mathematical proof to have epistemic value that it be “correct”, in the sense of formalizable in a formal proof system. We then present a view on the relationship between mathematics and logic that clarifies the role of formal correctness in mathematics. Finally, we discuss the significance of these arguments for recent discussions about automated theorem provers and applications of AI to mathematics.