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TugendhatVsSpeech Acts: unsatisfactory, assumed modes, because they are just like propositional content abstract moments of sentences that we can hardly believe - because they are moments and not components, they are also not independent.
Speech Act / Austin /Tugendhat: his merit is to have lifted the illocutionary act (meaning, claiming) as an independent, semantically relevant way.
Vorlesungen zur Einführung in die Sprachanalytische Philosophie Frankfurt 1976
Philosophische Aufsätze Frankfurt 1992