In the present paper, we start studying epistemic updates using the standard toolkit of duality theory. We focus on public announcements, which are the simplest epistemic actions, and hence on Public Announcement Logic without the common knowledge operator. As is well known, the epistemic action of publicly announcing a given proposition is semantically represented as a transformation of the model encoding the current epistemic setup of the given agents; the given current model being replaced with its submodel relativized to the (...) announced proposition. We dually characterize the associated submodel-injection map as a certain pseudo-quotient map between the complex algebras respectively associated with the given model and with its relativized submodel. As is well known, these complex algebras are complete atomic BAOs . The dual characterization we provide naturally generalizes to much wider classes of algebras, which include, but are not limited to, arbitrary BAOs and arbitrary modal expansions of Heyting algebras . Thanks to this construction, the benefits and the wider scope of applications given by a point-free, intuitionistic theory of epistemic updates are made available. As an application of this dual characterization, we axiomatize the intuitionistic analogue of PAL, which we refer to as IPAL, prove soundness and completeness of IPAL w.r.t. both algebraic and relational models, and show that the well known Muddy Children Puzzle can be formalized in IPAL. (shrink)

Philosophy in science should be sharply distinguished from the philosophy of science. The latter offers a philosophical reflection on the method of science; the former, on the contrary, is expected to concentrate on the mutual influence between the philosophical ideas and scientific theories and practice. The papers in this book explore both the methodological niveau of the philosophy in science and some particular philosophical issues intertwined with scientific theories. Only such a combination of two perspectives may provide a comprehensive picture (...) of the methods and applications characteristic of philosophy in science. The book includes essays by Sir Roger Penrose, Joseph LeDoux, Francisco J. Ayala, and Michael Heller who won of the Templeton Prize in 2008. (shrink)

Only the pratīkas of Śrutaprakāśikā are given.

Grammatical analysis of commentaries of Sankaracarya on Prasthanatrayi (Brahmasūtra, Bhagavadgītā, Upanishad).

On ancient Hindu, Buddhist, and Jaina philosophers from Andhra Pradesh, India.

Hādī ilá al-ḥaqq, Yaḥyá ibn al-Ḥusayn, 859-910; view on Islamic philosophy; Islam; doctrines.

In this article, we trace and elucidate Heidegger’s radical re-thinking on the relation between science and technology from about 1940 until 1976. A range of passages from the Gesamtausgabe seem to articulate a reversal of the primacy of science and technology in claiming that “Science is applied technology.” After delving into Heidegger’s reflection on the being of science and technology and their “coordination,” we show that such a claim is essentially grounded in Heidegger’s idea that “Science and technology are the (...) Same [das Selbe].” In addition, we argue that, although different ontic epochs can be distinguished in the evolvement of science and/or technology, for Heidegger there is only one unique ontological Epoch of modernity that encompasses various ontic epochs. Therefore, the change from an “epoch of objectivity” to an “epoch of orderability [Bestellbarkeit]” cannot be considered to be an ontological shift. Furthermore, it is not right to ascribe to Heidegger the view that the development of quantum physics signals the beginning of a new ontological Epoch. (shrink)

本书考察了颜钧思想产生的社会历史背景及颜钧生平;构建了表述颜钧“大中哲学”的理论框架,包括它的经典依据、它的心性论和工夫论、它的人生价值观和社会理想;阐释了颜钧思想的特征及其在当时和对后世的影响。.