## FANDOM

150 Pages

 Attribution: This question is taken from this Physics Stack Exchange question by "Trung Phan" with it's answer given by "Lubos Motl".

## QuestionEdit

Prove that $F=MA_{\left(T^2\to0\right)}$ where "F" and "M" are F-Theory and M-Theory.

How does one solve this? It doesn't make much sense to me. F-Theory is obviously a 12-dimensional theory, whereas M-Theory is 11-dimensional, and when compactified on a torus, 9-dimensional. So, how can a 12-dimensional theory be equal to a 9-dimensional theory? This doesn't make sense to me.