A simple geometry question.

Are the Reals the convex hull of the Rationals?

yes

no

maybe

sometimes

Kind of but not really.

>>2
>>3
THERE CAN ONLY BE ONE

Yes

If we take Q to be a subset of the R-vector space R, The convex hull is the minimal convex subset of R containing Q (going by the definition on wikipedia).  Clearly R is convex and contains Q.  Conversely, if C is the convex hull and x is a real number, then C contains rational numbers a,b such that a < x < b (since C contains Q), and so contains x since C is convex.

is that like the hull of a ship, shouldn't a hull be concave or shit would fall out

>>9
I guess that would depend on whether you were inside the ship, or outside; eh Pythagoras?

THE ANSWER IS ONE