标签：#可构造宇宙

鑽石原則

鑽石原則（）是由在引入的組合原理，它適用於（）並暗示了連續統假設。羅納德·詹森在證明中提取了鑽石原理，即（）意味著存在。 定義 The diamond principle says that there exists a *', in other words sets for such that for any subset of ω1 the set of with is stationary in . There are sever…