[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fx-G828GLrxx9VX3XZj2PnP8iUiaNxIVfjU_v-up04GU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-01-21 14:18:48",131811837,[8,9,10,11],"(r∧t)→h","t→(r∧h)","(r∧h)→t","r→(t∧h)",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},60,"ab85973f2567b92d73a448f09d267b12","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F35f97c8324f322a7ca42de7bc5dc5abb.png","离散结构","work_26538233","命题逻辑","设命题变量 r 表示"你在高峰期驾驶"、t 表示"你坐的车里至少有三个乘客"、h 表示"你在人满为患的车道上驾驶",表示复合命题"只要你车里至少有三名乘客时,你就能在高峰时段人满为患的车道上驾驶."的逻辑表达式是",[21,32,41,51,60,69,72,82,91,100],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],131811827,[25,26,27,28],"如果下雨,那么不会刮风","刮风了,但没下雨","开始刮风是下雨的充分条件","每当不刮风时,就下雨","设有命题变量:r 表示"下雨"、w 表示"刮风",用中文表达一个复合命题 w→¬r","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],131811828,[36,37,38,39],"¬p→¬j","p->j","j→p","j→¬p","设有命题变量:j 表示"你得到了这份工作、p 表示"你知道怎么编程",命题"得到这份工作的充分条件是知道怎么编程"对应的逻辑表达式是",{"answer":42,"createTime":5,"id":43,"options":44,"question":50,"source":30,"type":31},[],131811829,[45,46,47,48,49],"没下雨并且我在家","如果下雨,那么我就不在家","如果我在家,那么就下雨","在下雨并且我不在家","如果没下雨,那么我就不在家","下列那个选项是"如果下雨,那么我就呆在家里"的否定表达",{"answer":52,"createTime":5,"id":53,"options":54,"question":59,"source":30,"type":31},[],131811831,[55,56,57,58],"今天不是星期四,天气很冷","今天不是星期四,或者天气不冷","今天不是星期四,也不冷","今天是星期四,但天气不冷",""今天是星期四并且天气很冷"的否定是",{"answer":61,"createTime":5,"id":62,"options":63,"question":68,"source":30,"type":31},[],131811835,[64,65,66,67],"我不会去玩且读书","我会去玩且不读书","我会去玩且读书","我要去看戏,读一本书;或者我不去看戏,也不读书",""我会去玩或读书,但不会两者都做"的否定是",{"answer":70,"createTime":5,"id":6,"options":71,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":73,"createTime":5,"id":74,"options":75,"question":81,"source":30,"type":31},[],131811838,[76,77,78,79,80],"我开车去工作当且仅当没有下雨","如果我开车去工作,那么没有下雨","我不开车去工作,当没有下雨","我开车去工作,当没有下雨","我不开车去工作当且仅当没有下雨","下列哪个选项是 "我开车去工作当且仅当下雨的时候" 命题的否定",{"answer":83,"createTime":5,"id":84,"options":85,"question":90,"source":30,"type":31},[],131811840,[86,87,88,89],"Al 在场,而 Bill 缺席","Al 和 Bill 都在场","Al 缺席,而 Bill 在场","Al 在场或 Bill 在场",""Al 和 Bill 缺席"的否定是",{"answer":92,"createTime":5,"id":93,"options":94,"question":99,"source":30,"type":31},[],131811843,[95,96,97,98],"蕴含式 p→q 的反命题与 p→q 的逆命题等价","蕴含式 p→q 的反命题与 p→q 的逆否命题等价","蕴含式 p→q 的逆否命题与 p→q 的逆命题等价","蕴含式 p→q 的逆命题与 p→q 等价","下面哪个命题是正确的",{"answer":101,"createTime":102,"id":103,"options":104,"question":109,"source":30,"type":31},[],"2024-01-21 14:18:49",131811844,[105,106,107,108],"¬p ∨ q","p → ¬q","¬q → p","p ∧ q","令 p、q 分别表示命题"在新泽西海岸游泳是允许的"、"在海岸附近发现过鲨鱼".语句"如果在新泽西海岸游泳是允许的,则在海岸附近没发现过鲨鱼"对应的命题公式是( )"]