Are there any good references which explain the injectivity part of Grothendieck's section conjecture in details? I heard that Grothendieck himself gave a proof in the letter to G.Faltings. But I need more kind explanation.


I already read a book `Galois groups and fundamental groups' by T.Szamuely. I do not know whether the book contains a proof of the injectivity part or not, maybe my understanding is not enough.


Any suggestion would be very helpful to me.



Injectivity of Section conjecture
You can find it in <http://www.springer.com/mathematics/algebra/book/978-3-642-30673-0>, Chapter 7 by Jakob Stix.


