User blog comment:Bubby3/Why no Greatly Mahlo cardinal in our weakly compact OCF?/@comment-31966679-20180607203050

A few questions for me to understand this:

what is Ξ?

what is \Kappa?

What is Greatly Mahlo cardinal?

What is a weakly compact OCF?

what is an OCF

What is PTO?

What is KP + WC?

What is KP + Pi - 3 Reflection?

What are weakly compact ordinals?

What is hyper-Mahlo ordinal?