Not Your Average Travel

[OverAndBack]

Just because I know y'all will set me straight, tell me if I'm reading the rule correctly and applying it correctly:

1-Player with basketball goes down to his/her knees while holding ball. TRAVELING (Rule 4-43 Article 5: "A player holding the ball may not touch the floor with a knee or any other part of the body other than hand or foot.")

2-Same player goes to knees but continues to dribble. NOT TRAVELING. (One of the fundamentals is that it's impossible to travel during a dribble)

3-Player already on his or her knees because of a scramble for the ball comes into possession of the ball. NOT TRAVELING as long as he/she doesn't attempt to stand up. They can pass or shoot from their knees, but if they attempt to get up, it's a travel, right?

4-Player dives on floor (along with others) and gains possession of the ball. NOT TRAVELING unless the player rolls away from a defender, right? They can pass or (though it's logistically unlikely) shoot, or call time out, as long as they don't roll away from a defender. Or is it just rolling in general?

Thanks. Sorry for those of you for whom these are obvious.