Who was Seymour Papert's official PhD dissertation advisor? I can't figure out if it was Piaget.. Please help!

Question

http://en.wikipedia.org/wiki/Seymour_Papert

http://web.media.mit.edu/~papert/

http://www.genealogy.ams.org/html/id.phtml?id=20656&fChrono=1

Answer 1

It does not seem possible that Piaget was Papert's dissertation advisor. This is because Papert did his doctoral dissertation at the University of the Witwaterstrand. He defended in 1952.

Piaget was teaching at the University of Geneva in the late forties and early fifties, and went to the Sorbonne in Paris in 1952.

One's advisor must be attached to one's institution. Therefore, although Papert used Piaget's theories in his dissertation, it is impossible for Piaget to have been Papert's advisor.