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|Natural Kinds||I 139
Natural kind/Fodor: no nat. kind: E.g. - -less than- "there is no science that is based on this predicate -" E.g. -less then three kilometers from the Eiffel Tower" if I knew what a law is, I would say: - P is a nat. kind predicate relative to S if S contains actual laws of the form Px>ax or ax>Px a-A-P are the predicates whose terms are the bound variables in the actual laws of a science - "Problem: concept of law unclear".
E.g. different payment modes (sea shealls, dollar bills) form a nat. kind - "because Gresham s Law applies to payments".
Def natural kind/Fodor: Thing and event classes about which there are important generalizations - "not all physical natural kinds - complete generalization dissolves nat. kind .
J. Fodor/E. Lepore
Holism Cambridge USA Oxford UK 1992