Fregean directions

The question 'What is the criterion of identity for directions?' might be construed as asking either 'When do lines have the same direction?' or 'When are directions identical?'. Frege's answer 'When they are parallel' fits the former question, not the la...

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Bibliographic Details
Main Author: Williamson, T
Other Authors: Analysis Trust
Format: Journal article
Language:English
Published: Blackwell Publishing 1991
Subjects: