If you have two matches that are related to each other (mother and son) and both match you, is that triangulation, or do the three persons need to be from different families?
@Aura Erickson Well that forms a triangulation but doesn't really prove anything other than the son is a child of the mother. You are right triangulation is usually used to show how 3 more distantly related people are all related the same way.
Thank you! That is what I thought.