A function f: X → Y is a Brouwer homeomorphism if it is a continuous bijection from X onto Y and for every A ⊂ X, f(cl(A)) = cl(f(A)).
A function f: X → Y is a Brouwer homeomorphism if it is a continuous bijection from X onto Y and for every A ⊂ X, f(cl(A)) = cl(f(A)).