The paper proves that the Boolean value of the modal propositional system P?5 are 1, which means V?B(B is a complete Boolean algebra)is the Boolean valued model of the modal propositiona system P?5.?是什么意思_The paper proves that the Boolean value of the modal propositional system P?5 are 1, which means V?B(B is a complete Boolean algebra)is the Boolean valued model of the modal propositiona system P?5.?在线翻译_英语_读音_用法_例句