Ludwig Josef Johann Wittgenstein:
(Vienna, 26 April 1889 – Cambridge, 29 April 1951).
Austrian-British philosopher. He made many contributions to the philosophy of language and to the foundations of logic. He also made contributions to the philosophy of mathematics and the philosophy of mind. He is considered a pioneer of analytic philosophy and is considered one of the greatest philosophers of the twentieth century. His late work is additionally associated with the school of Ordinary language philosophy. His elder brother was the pianist Paul Wittgenstein.
