印象的

Endogenous saccades ; spatial shift of attention ; illusory line motion ; pre-attention processing.

内源性眼跳；注意转移；线运动错觉；前注意加工

The fusion between the mutually contradicted forms of to sell and to buy the arbitrage. Their combined proposition, the dual arbitrage is the negation of the negation. Deducted by analogy, when summarizing all the trading forms, we can find that they all conform to the trinity philosophy of Hegel. As Marx said,"In Greek, this is the positive, negative and combined proposition. And to those readers who cannot understand Hegel"s language, we tell them a holly formula: positive, negative and the negation of the negation. All these trading forms follow the principles of the change of quantity and quality, the contradictive unification and the negation of the negation.

我们把套期保值交易看作正题，那么，卖出套期保值是肯定一一买入套期保值是否定，这两个包含在反题中的对抗因素的斗争，形成辩证运动；卖出套期保值和买入套期保值就可以互相转化；这两个彼此矛盾的交易，形成新的合题，就形成一个新的交易形式，即卖出套期保值和买入套期保值这两个彼此矛盾的融合，它们的合题——双向套期保值是否定之否定。