Homework Statement
Assume the function f : [0,1] x [0,1] -> [0,1] is continuous and apply the IVT to prove that there is a number c E [0,1] such that f(c,y0) = c for some y0 E [0,1]
The Attempt at a Solution
I tried to break the cube up with the ranging being y0 but I don't know how it...