I was looking for the original paper "Über formal unentscheidbare Sätze der Principia Mathematica und verwandter Systeme I" by Kurt Gödel, and this PDF is the only thing I could find.
The scanned pages contain tiny bits of writing here and there made by the owner of the copy of the journal. After an hour or two of work, I got rid of the bits completely, but page 22 is a bit mysterious to me. What was the owner trying to do there near the bottom of the page? My best guess is that the owner spotted a typo (or thought it was one) and fixed it.
What was originally printed under this person's scribbles?