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The entry titled “Frege's Logic, Theorem, and Foundations for Arithmetic” was retitled “Frege's Theorem and Foundations for Arithmetic”.
The new URL for the retitled entry is:
Note that a new entry, titled “Frege's Logic”, has been commissioned for this location. So this notice is temporary and will be taken down within a few months.
Please update any bookmark that led you to this page, or inform the webmaster of sites with links leading to this page that this URL will soon host a different entry.