[1PT] Prerequisites:[1P0]βΊβ».Difficulty:*.
Let πΎ,πΏ:S1ββn be simple and immersed closed curves with the same support; Define πΎ^(t)=πΎ(βt): show that either πΎβfπΏ or πΎ^βfπΏ.
[1PV]βΊβ»