Abstract
Reasoning is for the most part carried on by the aid of signs. It has been contended by some writers that it can only be conducted by this agency; others maintain that the use of signs is not indispensable and this is the more probable opinion. But it is universally agreed that the use of signs is a most important aid and that without them no extended process or reasoning could be conducted
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© 1997 Springer Basel AG
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Grattan-Guinness, I., Bornet, G. (1997). The Nature of Logic. In: Grattan-Guinness, I., Bornet, G. (eds) George Boole. Science Networks. Historical Studies, vol 20. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-8859-2_1
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DOI: https://doi.org/10.1007/978-3-0348-8859-2_1
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Online ISBN: 978-3-0348-8859-2
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