On 8/22/06, Charlie Reams calr3@cam.ac.uk wrote:
Can someone point me to one of these cycles?
The best hypothetical I could come up with is Humans > Science > Anthropology > Humans. Anthropology is a subset of Science, but Science is something done exclusively (that we know of) by humans, and Humans are Anthropology's subject of study. If we separated "strict sub/superset" (as current category system) and "related to" (not as current category system: symmetric and non-transitive), as many have suggested, there should never be any need for circularity.