The original proof of Gleason’s Theorem is very complicated and therefore, any result that can be derived also without the use of Gleason’s Theorem is welcome both in mathematics and mathematical physics. In this paper we reprove some known results that had originally been proved by the use of Gleason’s Theorem, e.g. that on the quantum logic ℒ(H) of all closed subspaces of a Hilbert space H, dim H≥3, there is no finitely additive state whose range is (...) countably infinite. In particular, if dim H=n, then on ℒ(H) there is a unique discrete state, namely m(A)=dim A/dim H, A∈ℒ(H). (shrink)

In this paper I shall venture into an area with which I am not very familiar and in which I feel far from confident; namely into phenomenology. My main motive is not to get away from standard, boring, methodological questions like those of induction and demarcation; but the conviction that a phenomenological account of the empirical basis forms a necessary complement to Popper's falsificationism. According to the latter, a scientific theory is a synthetic and universal, hence unverifiable proposition. In fact, (...) in order to be technologically useful, a scientific hypothesis must refer to future states-of-affairs; it ought therefore to remain unverified. But in order to be empirical, a theory must bear some kind of relation to factual statements. According to Popper, such a relation can only be one of potential conflict. Thus a theory T will be termed scientific if and only if T is logically incompatible with a so-called basic statement b, where b is both empirically verifiable and empirically falsifiable. In other words: T is scientific if it entails ¬b; where b, hence also ¬b, is an empirically decidable proposition. (shrink)

Religious education and religious services practices that emerged as spiritual/religious support and guidance in the context of social work in Turkey are carried out with the protocols between Presidency of Religious Affairs ( DIB) and Ministry of Health, Justice, Ministry Family and Social Services, Youth and Sports, Disaster and Emergency Management Presidency. This research is on the self-efficacy perceptions of religious officials assigned in various social work areas of the Ministry of Family and Social Services. Researching the self-efficacy perceptions of (...) religious officials is important in terms of revealing that it is necessary to work in a wide area from making identifications about their professional development to developing religious education and services training programs that will meet the needs of the target group. Qualitative research method has been used in this study. The research has been structured within the framework of interviews with religious officials assigned to provide religious education and service in the service areas of the Ministry of Family and Social Services in Kırıkkale province. The data obtained from religious officials working in the field with semi-structured interview questions are evaluated in two themes: The self-efficacy perceptions of officials and needs of the target audience. The main conclusion reached in this study is as follows: Needs- based and value-based training programs can be developed for religious workers in social service institutions. (shrink)

A homonymy analysis is proposed to explain the so-called “demonstrative use” of personal pronouns. This analysis explains why some pronouns (_it_) do not allow a demonstrative use, as demonstrated in Nunberg (1993). The absence of a demonstrative feature in _it_ can also account for the fact that it does not allow deferred reference. It is argued on the basis of the structure of the nominal demonstrative paradigm that the homonymy analysis is more parsimonious than a single-item analysis.

It has been maintained, by both philosophers and modern scientists, that the two domains of discourse of science and of philosophy are disjoint Though admitting that many physicists subscribed to metaphysical principles, it was claimed - by Duhem and Reichenbach among others - that the scientist's philosophical convictions play, or should play, no role in his scientific work. The present paper attempts to refute this separatist view by showing that Einstein's metaphysical realism - coupled with his Platonistic panmathematicism - played (...) a crucial role in his construction of the Relativity Programme and in his criticism of Quantum Mechanics. The article also shows that although Einstein was neither a strict Humean nor a strict Machian, his phenomenalist interpretation of the empirical basis proved to be an antidote against both conventionalist scepticism and Neurath's coherence theory of truth. /// Tanto filósofos como cientistas têm defendido a ideia de que os domínios discursivos da Ciência e da Filosofia seguem caminhos separados. Mesmo admitindo que muitos cientistas subscreveram princípios metafísicos, a ideia tem sido defendida - por Duhem e Reichenbach, entre outros - de que as convicções filosóficas do cientista não desempenham, ou deveriam não desempenhar, qualquer papel no seu trabalho científico. O objectivo do presente artigo é refutar esta visão separatista das coisas mostrando de que modo o realismo metafísico de Einstein - associado ao seu panmatematicismo platónico - desempenhou um papel crucial na sua construção do Programa da Relatividade e nas suas críticas à Mecânica Quântica. O artigo mostra igualmente que embora Einstein não fosse nem um Humeano estrito nem um estrito Macheano, a sua interpretação fenomenalista da base empírica demonstrou ser um antídoto quer contra o cepticismo convencionalista quer contra a teoria da coerência da verdade de Neurath. (shrink)

Wittgenstein's work remains, undeniably, now, that off one of those few philosophers who will be read by all future generations.

Kvantory kak vtoropori︠a︡dkovye predikaty: ot Frege k abstraktnym logikam -- Kvantory kak funkt︠s︡ii vybora: ot Pirsa k IF-logikam -- Kvantifikat︠s︡ii︠a︡ i ėkzistent︠s︡ii︠a︡ -- Ėkzistent︠s︡ii︠a︡ i negat︠s︡ii︠a︡.