What a strange interpretation. As you mention: Dedekind stopped corresponding with him after the publication, but also began keeping a copy of every letter he

What a strange interpretation. As you mention: Dedekind stopped corresponding with him after the publication, but also began keeping a copy of every letter he sent to Cantor. Sure it's circumstantial, but it's exactly what you would do when you're the victim of a plagiarist. In my eyes the burden of proof has been met.