The goal of the paper is to expound a notion of conceptual apparatus, by revealing structure and functions of objects it designates. The notion has been developed by Kazimierz Ajdukiewicz in the mid of 30ties, within a standpoint of radical conventionalism. According to its proponents, a picture of world one bears is not stated directly by the data of experience, but depends on conceptual apparatus chosen. Ajdukiewicz defines the notion consequently, referring it to a set of all meanings attributed to (...) expressions in a closed and compact language. Nevertheless, it turns out to be vague, since it inherits the vagueness from presupposed categories, especially from ambiguously used category of meaning. (shrink)

Michael Polanyi’s philosophical ideas are interpret in various ways worldwide. In Poland the name remains (barely) listed among such philosophers of science as Thomas Kuhn and Paul Feyerabend, whereas English or German authors regard him rather as a theorist of knowledge and place aside Gilbert Ryle, Charles Sanders Peirce, Hans-Georg Gadamer or Maurice Merleau-Ponty. The aim of the paper is to describe typical ways of how Polanyi’s ideas are being currently received and to report his main statements. It is proceeded (...) in four steps. After short biography of the author briefed in first point, second one sums up the content of all his main works, depicting thereby the evolution of his views. In third point receptions published in Polish, English and German literature are screened and discussed, focusing on issues of rationality, personal knowledge, tacit knowledge and tacit knowing. Fourth point states a problem of alleged holism and eclecticism as interpretative characteristics of Polanyi’s philosophical views. (shrink)

How the idea of tacit knowledge is being understood typically? The article reconstructs interpretations in context of three different disciplines: (1) linguistics, (2) cognitive psychology and (3) sociology of knowledge. Furthermore, it proposes (4) definitional criteria for a general notion of tacit knowledge.

Tacit premises of science constitute researcher’s cognitive scheme, i.e. a set of a priori conditions of knowledge acquisition and application. Couple of assumptions make Polanyi’s idea considerably different than Kantian or behavioural or structural interpretations of cognitive scheme. He sees it more in hermeneutical or habitual terms — as system of (a) skills (dispositions to act), which (b) defines the level of competence; (c) cannot be verbally articulated; (d) is embodied (and hence unaware); (e) innate or acquired through practice — (...) in master-pupil relations; (f) undergoes constant modifications when applied; (g) conditions both theoretical actions (eg. categorisation, acts of assertion), as well as practical (manual skills, acts of perception). (shrink)