判断公式“xy(F(x, y) ? F(y, x))”的类型：[填空1]

答案查看网，轻松搜题/搜资源

【简答题】【消耗次数：1】

参考答案：

复制

纠错

➡️如需代学继续教育，联系微信：yizhituziang

相关题目

【简答题】判断公式“xy(F(x) ùG(y) ?H(x,y))”的类型：[填空1]

查看完整题目与答案

【简答题】实数集合里，a =0，f (x,y)=x-y，F(x,y): x=y， G(x,y): xy。公式“xy(G(x,y) ??F(f(x,y),a))”的真值：[填空1]

查看完整题目与答案

【简答题】实数集合里，F(x,y): x=y， G(x,y): xy。公式“xy(G(x,y) ??F(x,y))”的真值：[填空1]

查看完整题目与答案

【简答题】自然数里，a=2，f (x,y)=x+y，g (x,y)=x·y，F (x,y): x=y。公式“xy(F(f(x,a),y) ?F(f(y,a),x))”的真值：[填空1]

查看完整题目与答案

【判断题】实数集合里，a =0，f (x,y)=x-y，F(x,y): x=y， G(x,y): xy。公式“xy(F(f(x,y),a) ?G(x,y))”的真值为假。

① 正确

② 错误

查看完整题目与答案

【判断题】自然数里，a=2，f (x,y)=x+y，g (x,y)=x·y，F (x,y): x=y。公式“xy(F(f(x,a),y) ?F(f(y,a),x))”的真值为假。

① 正确

② 错误

查看完整题目与答案

【简答题】判断公式“x$yF(x, y) ? $xyF(x, y)”的类型：[填空1]

查看完整题目与答案

【简答题】自然数里，a=2，f (x,y)=x+y，g (x,y)=x·y，F (x,y): x=y。公式“$xF(f(x,x),g(x,x))”的真值：[填空1]

查看完整题目与答案

【判断题】自然数里，a=2，f (x,y)=x+y，g (x,y)=x·y，F (x,y): x=y。公式“xF(g(x,a),x)”的真值为真。

① 正确

② 错误

查看完整题目与答案

【单选题】在公式（）F（x，y）→（y）G（x，y）中变元x是（　　　）

① 自由变元

② 约束变元

③ 既是自由变元，又是约束变元

④ 既不是自由变元，又不是约束变元

查看完整题目与答案

随机题目

【单选题】 Our modern civilization must not be thought of as ＿＿＿＿＿＿ in a short period of time.

① having creaｔed

② creating

③ having been creaｔed

④ being creaｔed

查看完整题目与答案

【单选题】 By the time she is 50 years old, she ＿＿＿＿＿ an inmate of the prison for over half of her life.

① would be

② would have been

③ will have been

④ will be

查看完整题目与答案

【单选题】 He has been writing the essay the whole morning and he still ＿＿＿ .

① has been

② does

③ has

④ is

查看完整题目与答案

【单选题】 Greater efforts to increase agricultural production must be made if food shortage ＿＿＿＿＿＿ avoided.

① is to be

② can be

③ has been

④ will be

查看完整题目与答案

【单选题】 There was a knock at the door. It was the second time someone ＿＿＿＿＿ me that evening.

① to have interrupted

② would have interrupted

③ to interrupt

④ had interrupted

查看完整题目与答案

【单选题】 He didn’t show up at the party yesterday. He ＿＿＿＿ in the lab.

① must have been busy working

② must be busy wording

③ must be busy to work

④ would have been busy working

查看完整题目与答案

【单选题】 Marlin is an independent man who is not about ＿＿＿＿＿ on his parents any more.

① having relied

② to rely

③ relying

④ to have relied

查看完整题目与答案

【单选题】 It ＿＿＿＿＿ for over a month and the downpour had damaged many houses.

① has rained cats and dogs

② has been raining heavily

③ rained heavily

④ had been raining cats and dogs

查看完整题目与答案

【单选题】 Between 1897 and 1919, at least 29 motion pictures ＿＿＿＿＿ .

① have been produced

② had been produced

③ had produced

④ would have produced

查看完整题目与答案

【单选题】 At the age of twenty-three, Emily ＿＿＿＿＿＿ a businessman of her own choice.

① had been married

② had married

③ married

④ was married

查看完整题目与答案