Reductionisms and physicalisms
Causal exclusion arguments, especially as championed by Kim, have recently made life uncomfortable for would-be non-reductive physicalists. Non-reductive physicalism was itself, in turn, partly a response to earlier arguments against reductionism. The philosophy of science, though, distinguishes more forms of reduction than philosophy of mind generally cares to. In this paper I review four major families of reductionist thesis, and give reasons for keeping them more carefully separate than usual.