However Schmidt pointed out a gap in the argument at the prime 2 , which Shafarevich fixed in 1989 .
Y In 1954 Igor Shafarevich published a proof that every finite solvable group is a Galois group over the rationals .
Schmidt pointed out a gap in the argument at the prime 2 , which Igor Shafarevich fixed in 1989 .
Y In 1954 Igor Shafarevich published a proof that every finite solvable group is a Galois group over the rationals .