dimbulb

ok let x.E.X represent x is an element of the set X

2.
FOR ALL x.E.X, THERE exist a y.E.Y s.t. P(x,y).
X = {y.E.{all people}|y has benefitted from scientific discoveries}
Y = {y.E.{all people}|y is a scientist}
P(x,y): x owes money to y.