The main result of my paper X (in mathematics) turns out to be a special case of another paper Y. How should I acknowledge their priority without making my paper look worthless?
This is the situation: in terms of the main theoretical result...
- X is a special case of Y
- X was posted on arXiv after Y
- X was presented at a conference before Y even started (there is no conference proceedings though)
- I was not aware of Y until I put X on arXiv.