Combat Feat: Mobility question

[JoelF847]

The Combat Feat Mobility lets you not provoke attacks of opportunity due to movement. Does this include standing up from prone? If so, that would be great that there's a way to stand without suffering an attack (especially when you can be tripped again with that attack!)

[primemover003]

Actually Joel if you're Prone and stand up the AoO provoked happens BEFORE you stand so your opponent can't Trip you at all. Once the attack is resolved you can stand up.