0 votes 0 votes what is the truth value of this if x,y belong to real numbers $\exists x\forall y(y\neq 0 \rightarrow xy=1)$ am getting true,but given answer is false. Mathematical Logic mathematical-logic first-order-logic + – Gate Fever asked Jan 8, 2019 • edited May 12, 2021 by Shiva Sagar Rao Gate Fever 388 views answer comment Share Follow See all 3 Comments See all 3 3 Comments reply Shobhit Joshi commented Jan 8, 2019 reply Follow Share the logic statement says there exist an x, for which is true for every y. So, this is false. this would be true if the logic statement was like $\forall y \,\exists x(y\neq 0 \rightarrow xy=1)$, this would be true. 2 votes 2 votes Gate Fever commented Jan 8, 2019 reply Follow Share u mean $\exists x\forall y $ means sab y k lie ek x exist karta h , matlab koi ek aisa x hona chahie jispe sb y multiplykarne pr 1 dete ho! $\forall y\exists x$ means har y k lie koi na koi x exist krta h ,jise multiply karne par wo 1 dede am i right?? 0 votes 0 votes Shobhit Joshi commented Jan 8, 2019 reply Follow Share @Gate Fever bilkul sahi bhai 0 votes 0 votes Please log in or register to add a comment.