I will sketch a proof of the fact that there is a six-element basis, under topological embeddability, for the family of Borel functions which are not in the first Baire class.
This is joint work with Raphaël Carroy.
I will sketch a proof of the fact that there is a six-element basis, under topological embeddability, for the family of Borel functions which are not in the first Baire class.
This is joint work with Raphaël Carroy.