2.9-2.10, due on September 12

DIFFICULT
In section 2.10 I'm having a hard time understanding what quantification and an existential quantifier does to help me.  Although maybe I am over-complicating it, because it might be really easy, I tend to do that often.

REFLECTIVE
Section 2.9 was kind of basic, maybe I'm not thinking deep enough.  The section was like the arithmetic laws of commutative, associative, and distributive so it was fairly easy to understand and comprehend.