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(1974) Methodological and historical essays in the natural and social sciences, Dordrecht, Springer.
1. Medieval logicians called words like "every", "not", "is' and" some" 'syncategorematic." Today, such words — along with propositional constants such as "and", "if…then" and "or" — are referred to as logical or formative signs in contrast to extra-logical or descriptive signs.
Publication details
DOI: 10.1007/978-94-010-2128-9_12
Full citation:
Sommers, F. (1974)., The logical and the extra-logical, in R. S. Cohen & M. W. Wartofsky (eds.), Methodological and historical essays in the natural and social sciences, Dordrecht, Springer, pp. 235-252.
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