Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/c097725d4d6532492fffe9197f39f947.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 propositional calculus英英字典_propositional calculus剑桥英语解释_propositional calculus柯林斯英文解释_果味酸柯林斯词典
1. N the system of symbolic logic concerned only with the relations between propositions as wholes, taking no account of their internal structure 命題縯算→compare predicate calculus