Purpose – To review and discuss Luciano Floridi’s 2019 book The Logic of Information: A Theory of Philosophy as Conceptual Design, the latest instalment in his philosophy of information (PI) tetralogy, particularly with respect to its implications for library and information studies (LIS). Design/methodology/approach – Nine scholars with research interests in philosophy and LIS read and responded to the book, raising critical and heuristic questions in the spirit of scholarly dialogue. Floridi responded to these questions. Findings – Floridi’s PI, including (...) this latest publication, is of interest to LIS scholars, and much insight can be gained by exploring this connection. It seems also that LIS has the potential to contribute to PI’s further development in some respects. Research implications – Floridi’s PI work is technical philosophy for which many LIS scholars do not have the training or patience to engage with, yet doing so is rewarding. This suggests a role for translational work between philosophy and LIS. Originality/value – The book symposium format, not yet seen in LIS, provides forum for sustained, multifaceted and generative dialogue around ideas. (shrink)

This essay examines Joseph Carens' open borders argument in the light of a case study of recent Somali migrants to the UK. It argues that, although arguments for significantly more open borders are compelling, they must take into account existing domestic injustice in receiving states as well as existing global injustice.

Many thinkers have said that a God whose existence is argued for metaphysically would have no religious significance even if he existed. This book examines the God or Absolute which emerges in various metaphysical systems and asks whether he, she, or it could figure in any genuinely religious outlook. The systems studied are those of Spinoza, Hegel, T. H. Green, F. H. Bradley (very briefly), Bernard Bosanquet, Josiah Royce, A. N. Whitehead, Charles Hartshorne. There is also a chapter on Kierkegaard (...) as the most important critic of metaphysical religion (especially Hegelian Christianity). The book ends with a statement of a form of absolute or pantheistic idealism espoused by the author and an indication of what religious significance it may have. (shrink)

We investigate the class of those algebras in which is a de Morgan algebra, is a quasi-Stone algebra, and the operations \ and \ are linked by the identity x**º = x*º*. We show that such an algebra is subdirectly irreducible if and only if its congruence lattice is either a 2-element chain or a 3-element chain. In particular, there are precisely eight non-isomorphic subdirectly irreducible Stone de Morgan algebras.

Gametes, tissue, and organs can be taken from the dying or dead for reproduction, transplantation, and research. Whole bodies as well as parts can be used for teaching anatomy. While these uses are diverse, they have an ethical consideration in common: the claims of the people whose bodies are used. Is some use permissible only when people have consented to the use, actually wanted the use, would have wanted the use, not opposed the use, or what? The aim of this (...) article is to make progress in answering these questions. Initially I assume knowledge of people’s desires in order to test whether consent is directly required by their rights without worrying about mistaken uses against their wishes. I claim consent is not directly required by people’s rights. If we know people wanted or would want a use, their rights permit the use, but if we know they wanted or would want not to be used, their rights do not permit the use. The knowledge assumption is then dropped and the question becomes how to decide what to do when the wishes of rightholders are not known. I suggest working out what to do when wishes are known and then adjusting, on the basis of whatever evidence there is, for probability and strength of desire. There are other considerations too, for instance about default rules. The key general comment here is that, in setting rules, the costs to rightholders in not getting what they want needs to be taken into account. The final section tries to show that, in setting these rules, mistaken uses are not to be taken as worse than mistaken failure to use. (shrink)

We consider the special and general relativistic extensions of the action principle behind the Schrödinger equation distinguishing classical and quantum contributions. Postulating a particular quantum correction to the source term in the classical Einstein equation we identify the conformal content of the above action and obtain classical gravitation for massive particles, but with a cosmological term representing off-mass-shell contribution to the energy–momentum tensor. In this scenario the—on the Planck scale surprisingly small—cosmological constant stems from quantum bound states having a Bohr (...) radius a as being \. (shrink)

An algebra A is said to be congruence coherent if every subalgebra of A that contains a class of some congruence on A is a union of -classes. This property has been investigated in several varieties of lattice-based algebras. These include, for example, de Morgan algebras, p-algebras, double p-algebras, and double MS-algebras. Here we determine precisely when the property holds in the class of symmetric extended de Morgan algebras.

Professor Benhabib seeks to rely upon discourse theory to ground a `right to membership' — a right of immigrants to seek and be granted naturalization. The effort is unpersuasive because discourse theory cannot provide an answer to the fundamental question of who should participate in the conversation that would establish a right to membership, nor is it clear that persons freely and equally discussing membership rules would reach the normative conclusions that Benhabib defends. Protection of the `rights of others' might (...) be better secured by arguing from human rights principles that guarantee rights to all residents — citizens and immigrants — than by arguing for a right to membership. (shrink)

I am pleased by the degree of agreement about reasons between the three of us, which is much greater than I might have guessed. I have no objection whatever to the project of giving the kind of psychological description of deliberation about reasons that Gibbard proposes. I agree that “weighing X in favor of A isn’t mysterious,” but I do confess to some doubt about how a psychological description of this process of weighing “explains, indirectly, X’s counting in favor of (...) A in such circumstances.” If there is any disagreement between Gibbard and me on this point, I think it is over the degree to which such an explanation is to be expected. (shrink)

We argue that abduction does not work in isolation from other inference mechanisms and illustrate this through an inference scheme designed to evaluate multiple hypotheses. We use game theory to relate the abductive system to actions that produce new information. To enable evaluation of the implications of this approach we have implemented the procedures used to calculate the impact of new information in a computer model. Experiments with this model display a number of features of collective belief-revision leading to consensus-formation, (...) such as the influence of bias and prejudice. The scheme of inferential calculations invokes a Peircian concept of ‘belief’ as the propensity to choose a particular course of action. (shrink)

Machiavelli, Niccolò, 1469-1527-Criticism and interpretation ; Political science-Translating.

Logic; Islamic philosophy; Islam--doctrines.

Byzantine Empire; economic and social conditions; history.