Wittgenstein dissociates generality from(first-ordered)quantification and treats the universal and exist-ence quantified propositions as logical product and logical sum,respectively,which are truth functions.According to Wittgenstein,generality cannot be expressed by these two propositions.The reason is not that Wittgenstein doesn't learn all methodology and techniques of modern quantificational logic or his symbolism is defective in ex-pressive power such that generality cannot be expressed in it,but that he holds a totally special conception of gener-ality differing from Frege and Russell's traditional conception.He thinks that generality is unsay able and it can on-ly be shown by bound variables in quantificational propositions.There are three reasons contained in his philosophy in Tractatus that are found out to explain why he holds such a distinct conception of generality.
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