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Full Idea
There do seem to be psychological and physical causal laws which are distinct from each other.
Gist of Idea
There are distinct sets of psychological and physical causal laws
Source
Bertrand Russell (On Propositions: What they are, and Meaning [1919], §II)
Book Ref
Russell,Bertrand: 'Logic and Knowledge', ed/tr. Marsh,Robert Charles [Routledge 1956], p.299
A Reaction
This sounds like the essence of 'property dualism'. Reductive physicalists (like myself) say there is no distinction. Davidson, usually considered a property dualist, claims there are no psycho-physical laws. Russell notes that reduction may be possible.