Are you smart?

[Dyno247365]

Formally, given a partially ordered set (P, ≤), an element u of P is an upper bound of a subset S of P, if s ≤ u, for all elements s of S.

WHAT THE HELL DOES THIS MEAN?? It's part of my 'scavenger hunt over the weekend'. I just have to copy this and define it so I'm not asking you guys for help but If I want to become an engineer I want to damn well understand what this means and/or the reason for it.

this too:
For some natural number n, n·n = 25.

Similarly, if Q(n) is the predicate "n is even", then

is the (false) statement

For some even number n, n·n = 25.

[00accord44]

You just made a piece of my brain die.

[Dyno247365]

Originally Posted by 00accord44

You just made a piece of my brain die.

Does ANYONE know what this means? any engineers?

[blindside.AMG]

I Googled that whole sentence and got a link to Wikipedia:

http://en.wikipedia.org/wiki/Least_upper_bound

Does that help??

[fredjacksonsan]

Originally Posted by Dyno247365

Formally, given a partially ordered set (P, ≤), an element u of P is an upper bound of a subset S of P, if s ≤ u, for all elements s of S.

WHAT THE HELL DOES THIS MEAN?? It's part of my 'scavenger hunt over the weekend'. I just have to copy this and define it so I'm not asking you guys for help but If I want to become an engineer I want to damn well understand what this means and/or the reason for it.


this too:
For some natural number n, n·n = 25.

Similarly, if Q(n) is the predicate "n is even", then

is the (false) statement

For some even number n, n·n = 25.

It's been far too long since I worked with set theory to be much help; therefore.....

This...is a job for Super Tangie!

Except for the natural number question: n, where n·n = 25. The answer is 5.

Originally Posted by Wikipedia

Natural numbers, popularly called "whole numbers", have two main purposes: they can be used for counting ("there are 3 apples on the table"), and they can be used for ordering ("this is the 3rd largest city in the country")

[speediva]

Originally Posted by Dyno247365

Formally, given a partially ordered set (P, ≤), an element u of P is an upper bound of a subset S of P, if s ≤ u, for all elements s of S.

Okay, so I'm guessing here that your < or = to symbols are in place of "proper subset" meaning that the superset cannot equal the subset in terms of how many elements exist (the subset and superset are not exactly the same). Since the subset and superset cannot be exactly the same, this means that the upper bound of the subset S (being called u) must be larger than any other element of S (called s).

Wow, I didn't think I had it in me... I haven't had Discrete in about 4 years now... almost 5.

this too:
For some natural number n, n·n = 25.

Similarly, if Q(n) is the predicate "n is even", then

is the (false) statement

For some even number n, n·n = 25.

Okay, the diagram that you have does not state that some "even" number n results in n^2 = 25. It states the first sentence. 5 is a natural # (counting #'s is another name) so you can use 5 as that answer. The diagram actually "reads"

"For every n that is an element of (the set of real #s), Q(n) -- which I am not sure of since Q is not bolded, but could mean that n is a rational # (since Q is the set of all rationals) AND (the carat is "and" for those who don't follow) P(n, n, 25) which does result, as was said, in 5 x 5 = 25.

[00accord44]

Tangie you're the (wo)man!

The wierd thing is that after you explain it I can see it, but befire that I had no idea. Damn my inattentiveness in higher level math lectures But I'm by no means a math or engineering major so I guess I shouldn't feel bad. But YOU Dyno... for shame

[G-man422]

Wow. Tangie made it A LOT easier to understand. I guess i just didnt know some of those symbols.

[tonioseven]

Tangie is a true goddess!!

[Damien]

that'swhat i was thinkning. but hows that gotta do with a scavenger hunt???

ugh i hate math. sucks that it's my best subject. so...boring.

oops, i didnt mean it tangie!!!

[93rollaracer]

I consider myself a genius, but I don't do math.

[Dyno247365]

Originally Posted by 00accord44

Tangie you're the (wo)man!

The wierd thing is that after you explain it I can see it, but befire that I had no idea. Damn my inattentiveness in higher level math lectures But I'm by no means a math or engineering major so I guess I shouldn't feel bad. But YOU Dyno... for shame

Hey! This is my first Calc class! I'm trying and that's what counts.

[Dyno247365]

Originally Posted by Damien

that'swhat i was thinkning. but hows that gotta do with a scavenger hunt???

ugh i hate math. sucks that it's my best subject. so...boring.

oops, i didnt mean it tangie!!!

You really wanna know? here it is!

We all have 'catching up to do' since we only have the class twice a week soooo he makes us learn these ten or more equations per week. For the weekend I have:

Define: universal quantifiers, Do 3 of truth statements and 3 false staements, Existensial Quantifiers, Same as that, 3 T and 3 F

Define Upper Bound, 3x, least Upper Bound 3x, Lower Bound 3x Greatest Lower Bound 3x, Mathematical induction 3x, Proof by Contradiction 3x, Continous and Discrete, 3 of each and I've never seen these words before!!! Which reminds me, I'm procrastinating. Due wednesday.

Thanks for the explanantion Tangie.

[elementskater15]

wow...i can build a computer, i can plumb and wire a house, i can even clean windows without leaving streaks..but a bit of my soul died when I read that..i think i just pooed..

[Dyno247365]

Originally Posted by elementskater15

wow...i can build a computer, i can plumb and wire a house, i can clean even windows without leaving streaks..but a bit of my soul died when I read that..i think i just pooed..

Lol I've discovered the silent BROWN noise!!! I was about to eat dinner, thanks..