0 votes 0 votes What does ∃y∀xQ(x,y) mean where Q(x,y) denotes x+y=0 ? Mathematical Logic discreet-maths + – Asutosh asked Sep 11, 2018 Asutosh 244 views answer comment Share Follow See all 3 Comments See all 3 3 Comments reply Shaik Masthan commented Sep 11, 2018 reply Follow Share There exist a y, for all x, which satisfies Q(x,y) in simple terms, if you take any value for x, then there exist a value(y), which makes x+y=0 i hope they define Integers as domain 0 votes 0 votes Asutosh commented Sep 11, 2018 reply Follow Share How is it different from ∀x∃yQ(x,y) 0 votes 0 votes Shaik Masthan commented Sep 11, 2018 reply Follow Share with this example, i can't say it clearly. But you can check this https://drive.google.com/open?id=1yo8W-5MlM4BxISgLOxP3Lo6cfdjzuUdH 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes Assuming x and y are real numbers , Statement means - There is a real no. to which you add any real no. the result will always come zero. Abhinavg answered Sep 11, 2018 Abhinavg comment Share Follow See all 0 reply Please log in or register to add a comment.