Yevamot 102: Even Eliyahu Can't Reverse Chalitzah

More on the practicalities of chalitzah. To what extent does the chalitzah close the door on the relationship between yavam and yevama? Plus, testimony as to what shoe was in use for chalitzah, and why there was a machloket over the shoe. Also, how do we know that the root of the word "chalitzah" means to remove (as in, removing the yavam from the yevama)? Including Rabban Gamliel's scorn at a poor effort to interpret the "removal" as God turning His back on Bnei Yisrael.