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The Russell's Paradox
註釋It was as if Russell had had a dream about how imperfect Frege's theory was: He wrote to Frege when Frege was finishing his book and talked about that in the letter. Frege published Russell's letter in his book without hesitation. He also wrote a few remarks about it. Some people proposed that we had class and set as a solution for what they called Russell's Paradox. We propose that we consider time not only when plotting graphs (Infinis), but also when creating mathematical objects in general. We seem to think about it, but nothing is explicitly said, and we believe that is the core of all problems. Read this book to understand why.