Are two points the same?

I have a list of points, and I have a set of Delaunay tetrahedrons (cells) from this point cloud. I want to select the corners c of a face of a cell, and then iterate over the original set of points (point p), to do something if the corner (c) is coincident with point p. I don’t think p.Equals(c) would work because they have different indices. How do I test if two points are in the same location but different indices?

Distance between them is zero.

3. Attach minimal versions of all the relevant files

Well that is embarrassingly easy. Thanks!

How would I do it if it were a brep?