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Dos conjuntos às alegorias

The Author discusses the meaning of the use of mathematical objects in representing knowledge. Starting with numbers, he examines sucessively others formal instruments, such as sets, structures, categories, and allegories, a new object proposed by Freyd & Scedrov (1990). This way, he suggests that the growth of the abstraction level does not presuppose a necessary progressive disconnection from reality; quite the contrary, it provides an increasing contact with it.

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