In earlier posts, I have preferred the Shannon notion of information, according to which information is a sequence of symbols. And I have emphasized that symbols are abstract objects. The symbols are usually considered to be intentional objects, because it is only on account of our intentions that we consider them to be symbols.
In this post, I want to relate the idea of symbol with that of category. I’ll start by assuming that the readers have at least an informal idea of what we mean by category.
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The Heretical Philosopher 