Question

state whether the following statement is true or false
{a,b,c} = {c,a,b}

Answer 1

Assuming {} refers to a set, yes. Generally in sets, order does not matter.

Answer 2

ok now answer ts for me: The set of football teams in the NFL( write the set in set-builder notation

Answer 3

I'm guessing they want something like:

{ x | x is a football team in the NFL }