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Unformatted text preview: concept F is the extension of the concept equal to the concept F. Frege regards the number zero as belonging to to the natural or counting numbers, whereas we subscribe to the view that zero is not a counting number at all (the first of the counting numbers being 1) and is only properly used when we regard a number as a relative-magnitude, zero being the relative-magnitude of two equal counting numbers. This work of Freges has considerable historical interest as a forerunner of the work of Whitehead and Russell. The translation is excellent and the printing leaves nothing to be desired....
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- Spring '10