On 18 Jun 2014 10:56:31 -0700, John Gabriel<t...@g...com>
wrote in news:04a57197-f3c0-4e60-bf74-34acd1f046e3@googlegrou
ps.com
> > 1. You state that "A straight line is said to be a tangent line if and
> > only if a portion of it intersects a curve in exactly one point and
> > crosses it nowhere."
> Correct. That's the original definition which was never 'dismissed' by
> any mathematician.

You stupid fuckwit, according to that definition, there is no
tangent line to f(x) = x at (1,1).
Or to any straight line, at any point.
Because the only possible tangent line will not intersect the curve
(which includes a straight line) in "exactly one point."
Conclusion. You need to kill yourself. There is no other way.
Do it out of the sight of others.
XXX
Prof. Dave U. Random, c/o Department of Mathematics, M.I.T.