试论双重买卖徐涤宇在交易社会中，由于债权无排他性规则的存在，所以极可能出现出卖人就某种目的将特定物同时或顺次与数买受人成立买卖合同的现象，此即双重买卖。对于双重买卖，各国民法一般无专门规定，只是在其牵涉到民法中的各种具体规定时，判例和学说才对其特殊性... In the trading society, Xu Diyu does not have exclusive rules because of the existence of the existence of the debt, so it is very likely that the seller for a particular purpose for a particular object at the same time or in sequence with the number of buyers the establishment of the sale and purchase contract phenomenon, that is, double trading . For the double trading, the civil law generally does not have the special stipulation in each country, only when it involves various concrete stipulations in the civil law, the precedent and the doctrine have their particularity ...