- #1
Pearce_09
- 74
- 0
R = the real numbers
A = R x R; [tex] (x,y) \equiv (x_1,y_1) [/tex] means that
[tex] x^2 + y^2 = x_1^2 + y_1^2; [/tex] B= {x is in R | x>= 0 }
Find a well defined bijection sigma : [tex] A_\equiv -> B [/tex]
like the last problem, I just can't seem to find the right way to solve this??
A = R x R; [tex] (x,y) \equiv (x_1,y_1) [/tex] means that
[tex] x^2 + y^2 = x_1^2 + y_1^2; [/tex] B= {x is in R | x>= 0 }
Find a well defined bijection sigma : [tex] A_\equiv -> B [/tex]
like the last problem, I just can't seem to find the right way to solve this??