Theorem: ε is always positive.
Proof: Let ε>0. 
-
-
harvard wants to know your location
End of conversation
New conversation -
-
If only such an option existed
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.