Repudiated is a bit strong. In some sense Wittgenstein hated everything he had written. However, Wittgenstein did believe that his friend had shown the system h

Repudiated is a bit strong. In some sense Wittgenstein hated everything he had written. However, Wittgenstein did believe that his friend had shown the system he laid out in Tractatus as unworkable: https://www3.nd.edu/~jspeaks/courses/2007-8/43904/_HANDOUTS/tractatus-color-incompatibility.pdf https://www3.nd.edu/~jspeaks/courses/2007-8/43904/_HANDOUTS/... The so-called "late" period his scope was no more bounded than the early Wittgenstein, but he changed his method of analysis from strict conceptual analysis to something more conversational. His study of language is not really interesting for what it contributed to philosophy of language, but because of the implications to the methods of philosophy itself.