Background
The D-N model is known by many names, including the covering law model, the subsumption theory, Hempel's model, the Hempel–Oppenheim model, and the Popper–Hempel model of explanation (Niiniluoto, 1995). Its introduction in the philosophical literature is part of a broad general discussion about the nature of scientific explanation (i.e., what it is, what it should be, etc.).
The D-N model is taught implicitly in schools, and approximates our pre-theoretical conception of science, which many non-experts hold. It was initially formalized by Carl Hempel and Paul Oppenheim in their article Studies in the Logic of Explanation (1948). A sketch of it can be found in Karl Popper's Logic of Scientific Discovery (1934).
Read more about this topic: Deductive-nomological Model
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