Occurrence Semantics

Tamina asked in class about the possibility of a system where semantic values are assigned to occurrences of expressions rather than to expressions relative to an index. Here is a survey-ish paper by Manfred Kupffer with further literature references:

“Manfred Kupffer”:http://www.uni-konstanz.de/kupffer/Kupffer.shtml. “Occurrence-Dependence”:http://www.uni-konstanz.de/FuF/Philo/Philosophie/Spohn/preprints/PS71-Kupffer.html (”pdf”:http://www.uni-konstanz.de/FuF/Philo/Philosophie/kupffer/pdf/OccurrenceDependence.pdf)