|Limits, philosophy: here we are concerned with the classification of knowledge domains or the identification of possibilities for thought. We need to determine what belongs to a domain and what does not. Problems arise wherever something is to be described beyond an area by the means of this area itself ('impracticability', 'unthinkability','inconceivability'), as well as where an area is solely covered by means originating from this area itself ( Circularity).|
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Def laws of coexistence/Fraassen: they indicate limits of possible states or simultaneous configurations. E.g. Boyles Gas Law (temperature is proportional to the volume times pressure), e.g. Newton’s law of gravity, e.g. Pauli principle (exclusion of the coexistence of electrons) - sometimes we can say that it has been deduced from theories that exclude a "distance effect".
No d.e., but a limitation of concurrent states.
B. van Fraassen
The Scientific Image Oxford 1980