References

1. Bell,D. (1996). The Formation of Concepts and the Structure of Thoughts, Philosophy and Phenomenological Research. 56, 583-596.
2. Dummett, M. (1991) Frege and Other Philosophers. Oxford: Oxford University Press.
3. Frege, G. (1952). On Sense and Meaning. In M. Black and P. Geach (eds.), Translation from the Philosophical Writings of Gottlob Frege, Oxford: Basil Blackwell Publication.
4. Frege, G. (1956). The Thought: A Logical Inquiry, Mind. 65, 289-311.
5. Wittgenstein, L. (1972). Tractatus Logico-Philosophicus. Translated by G.H.Von Wright, London: Blackwell Publication.