A unilateral mistake is one where one of the parties is mistaken and the other party knows of their mistake. 单方误解是指合同一方产生了误解,而另一方明知对方产生了误解。
The mistake in common system is mainly prescribed in contract law. It is based on the mutual interests balance and transaction safety value and divides mistakes into unilateral mistake, mutual and common mistake. 英美法系的错误理论主要规定在合同法中,它建立在双方利益平衡和交易安全价值基础上,将错误划分为单方错误,双方错误和共同错误。