Need help with Express in quantiers: The sequence {A n}n is element of natural numbers, is strictly decreasing Give the negation of as well. I am thinking for all N ,there exists x1 < x2, then f(x1) > f(x2) , kinda of lost...
Follow Math Help Forum on Facebook and Google+
Originally Posted by lukeheselden Need help with Express in quantiers: The sequence {A n}n is element of natural numbers, is strictly decreasing Give the negation of as well. There are of course several different ways one might do this. Here is one. The negation is,
Last edited by Plato; Aug 1st 2011 at 07:33 AM.
You mixed up the inequalities : the sequence is strictly decreasing ; what you wrote is for a strictly increasing sequence. I assume it's a typo, but i point it out for the original poster not to confuse everything.
Originally Posted by pece You mixed up the inequalities : the sequence is strictly decreasing ; what you wrote is for a strictly increasing sequence. Good catch. I misread it.
thanks guys
View Tag Cloud