求下列公式的子句集:(1)(x) [P(x)→Q(x)] (2){~{(x)P(x)}}→(x)[~Q( ) 求下列公式的子句集:(1)(x) [P(x)→Q(x)] (2){~{(x)P(x)}}→(x)[~Q( ) 发布时间:2025-07-16 04:44:55