|Reality, philosophy: it is controversial, which should be counted to reality, that is to say, the set of objects and states which occur in the world. Theories partially differ strongly regarding the definitions of facts and situations or the consideration of internal states of subjects. Thus, a situation can be described in many ways, whereby very different assumptions about the involved objects and relations come into play. See also ontology, realism, recognition, epistemology, constructivism, fact, situations, internal/external, totality, relations, simulation.|
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|Hacking I 56
Reality / Theory / Bas van Fraassen: (realist) theory: theories must be interpreted literally. No other possible interpretation - either true or false - it depends on the world - but there is no justification or need to rely on theories about unobservables. - I 76 existence / ontology: theory: there are simply no electrons nor any theoretical entities. Thes is only what can be observed - in principle electrons are unobservable - (but measurable).
constructive empiricist/theoretical terms: should not be mentioned, only be dedeucted. - (> mention / use) - I 92 adequacy rather than truth of a theory. - VsBest Explanation: - theories are acceptable, even if not literally true.
B. van Fraassen
The Scientific Image Oxford 1980
Einführung in die Philosophie der Naturwissenschaften Stuttgart 1996