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From Symbol to ‘Symbol’, to Abstract Symbol: Response to Copeland and Shagrir on Turing-Machine Realism Versus Turing-Machine Purism

Crossref DOI link: https://doi.org/10.1007/s11023-016-9394-1

Published Online: 2016-03-22

Published Print: 2016-09

Update policy: https://doi.org/10.1007/springer_crossmark_policy