caa a22 4500 465779301 CHVBK 20180323111950.0 cr unu---uuuuu 170327e19900901xx s 000 0 eng 10.1007/BF00370371 doi (NATIONALLICENCE)springer-10.1007/BF00370371 Szymanek Krzysztof Section of Logic and Methodology, Institute of Philosophy University of Silesia, Katowice, Poland aut Information functions with applications [Elektronische Daten] [Krzysztof Szymanek] In the first place, we present the definition and fundamental properties of information functions — functions which establish a correspondence between sets of formulas and the information contained in them. The intuitions for the notion of information stem from the conception of Bar-Hillel and Carnap in [3]. In § 2 we will briefly show how those notions can be applied to the logic of theory change. In § 3 we will use them for proving two theorems about the lattices of classical subtheories and their content. Polish Academy of Sciences, 1990 Studia Logica Kluwer Academic Publishers 49/3(1990-09-01), 387-400 0039-3215 49:3<387 1990 49 11225 https://doi.org/10.1007/BF00370371 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00370371 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Szymanek Krzysztof Section of Logic and Methodology, Institute of Philosophy University of Silesia, Katowice, Poland aut NATIONALLICENCE 773 0- Studia Logica Kluwer Academic Publishers 49/3(1990-09-01), 387-400 0039-3215 49:3<387 1990 49 11225 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer