… where the surface feature is a subjective appearance, … definition. For example, pretheoritically our notion of heat … to us, cold is what feels cold. … [Once we have a theory for heat] "Real" heat is now defined in terms … get when we touch a hot object is … is no longer part of real heat. … [p. 120] But this redefinition does not eliminate, and … from the world. They exist the same as …
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