M-Theory, Peccei-Quinn Analysis, Calabi-Yau fourfolds and Kähler 'Kaluza-Klein' Reduction

I know that two and two make four - and should be glad to prove it too if I could - though I must say if by any sort of process I could convert 2 and 2 into five it would give me much greater pleasure ~ George Gordon Byron

Great news for me personally - after nearly 20 years of researching M-Theory: see bottom link on M-Theory and my last formula in this post involving supersymmetry. I ended my last post by showing how Peccei-Quinn invariance leads to the compactification smoothness required for M-theory to isomorphically embed an 'Einsteinian-Minkowski' 4-D space-time in a Calabi-Yau fourfold in a way necessitated by quantum gravity.

Kähler Analysis, Peccei-Quinn-Symmetries, and Compactification

If a man's wit be wandering, let him study mathematics ~ Francis Bacon

In my last two posts, I launched a series where M-Theory can be Calabi-Yau fourfold-compactified, let me make a connection with PQ-symmetries in this post.

Calabi-Yau FourFolds, Kähler Analysis, and Compactification

I accept no principles of physics which are not also accepted in mathematics ~ René Descartes

Continuing with my M-theoretic Calabi-Yau fourfold compactification series, let me note that a C-'fourfolding' of M-Theory, as I will show ultimately, is equivalent to a proof of its testability and predictive power.