How Twilight Sparkle Lost Her Math License

A simple ponification of xkcd comic 410: Math Paper
The "r-arity" pun has been on my mind for years, and finally it can see the light of the day.

The first one to guess who the two ponies are gets a special mention here in the description!

The green pony: either Minkowsky or Einstein.
Her cutie mark is a light cone.

The pink pony: Ada Lovelace, guessed by AcerP and MiloCavendish
Note the similarity of hairstyle.
Ada worked on the Analytical Engine, though here I drew a Difference Engine, because it's more recognizable, the Analytical Engine being never fully built.
Her cutie mark is three dominoes, both representing the punched cards used by the Engines (and early electronic computers) and Ada's love of gambling.
"The gambling led to her forming a syndicate with male friends, and an ambitious attempt in 1851 to create a mathematical model for successful large bets. This went disastrously wrong, leaving her thousands of pounds in debt to the syndicate, forcing her to admit it all to her husband."
Woolley, Benjamin, The Bride of Science: Romance, Reason, and Byron's Daughter, February 1999, page 340-342

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A dub by Gina M www.youtube.com/watch?v=LGNuvM…