Freges Kriterien der Sinngleichheit
Frege’s mature writings apparently contain two different criteria of sense identity. While in „Über Sinn und Bedeutung“ (1892) and in „Kurze Übersicht meiner logischen Lehren“ (1906?) Frege seems to advocate a psychological criterion, his letter to Husserl of December 12, 1906 offers a thoroughly logical criterion of sense identity. It is argued that the latter proposal is not a „momentary aberration“, but rather Frege’s official criterion; his psychological criteria only serve as a way of illustrating questions of sense identity by appealing to the thoughts of ideal thinkers.
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© 2016 Walter de Gruyter GmbH, Berlin/Boston.