A 'tuple' in regular English is a set of numbers (typically but not by any means always integer numbers) that either share a common property or the set itself is a solution set, partial or complete, of some polynomial.
'Abundancy' is -- well, you don't want to get into what abundancy is, actually.
The intent of my rather pointed commentary was that the Commie Corpse ludicrous concept of 'friendly number' is as academically verkakht as would be the gratuitous redefinition in physics of 'gravity' to be 'the frequency of apples landing on Newton's head.'
And I'm not certain at all that the grotesque stupidity indicated by that last definition is sufficienly indicative of the abysmal lack of knowledge, coherence and intellectual competence as demonstrated by the Commie Corpse Crapheads.
FReegards to you, and I am **ALL FOR** homeschooling, SAJ
The world of mathematics is one thing.
Talking like that to 4th graders is a whole ‘nother story.