1. PHILOSOPHER BIOGRAPHY Ludwig Wittgenstein

2. Wittgenstein’s Background Born in Austria on April 26, 1889 Graduated with a degree in engineering at Manchester University, and later studied at Cambridge A member of the Austrian army during WWI in 1914 Passed away in 1951

3. Key Concepts Mathematics and logic Philosophy

4. Key Concepts Ordinary Language Theory Language in Philosophy

5. Philosopher's Contributions Tractatus Logico-Philosophicus  Concepts  Rejection

6. Philosopher's Contributions Philosophical Investigations  New step  Critique

7. School of Thought Importance of Tractus Analytic Linguistic

8. References Biletzki, A. (2009). Ludwig Wittgenstein. Retrieved from http://plato.stanford.edu/entries/wittgenstein/ Paul, Guyer. (2004). Wittgenstein, Ludwig (1724-1804). Retrieved from http://www.rep.routledge.com/article/DB047 Robephiles. (2009). The Key Concepts of the Philosophy of Ludwig Wittgenstein. Retrieved from http://robephiles.hubpages.com/hub/The-Key-Concepts-of-the- Philosophy-of-Lutwig-Wittgenstein Ludwig Wittgenstein. (2009). Retrieved from http://plato.stanford.edu/entries/wittgenstein/ Jones, R. B. (1998). Notes on: Ludwig Wittgenstein. Retrieved from: http://www.rbjones.com/rbjpub/philos/bibliog/lw0.htm Moore, B. N., & Bruder, K. (2011). Philosophy: the power of ideas. (8th ed.). Boston: McGraw-Hill