Mathematics

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Nov 10, 2012 16:51
I tryed to read some articles about it but theres a lot of trash abou filosophy and Aristoteles and similar shits but from picture it seems its just some operations with the sets
3
Nov 10, 2012 16:49
I need to just say for example: SaP is true
so SeP is a)true b) false c)we can't say
same for SiP and SoP
Nov 10, 2012 16:48
hello does anybody understand to logical square? http://en.wikipedia.org/w/index.php?title=File:Square_of_opposition,_set_diagrams.svg&page=1
I'll be probably some stupid easy rule
Nov 9, 2012 16:50
thanks a lot ... I haven't use this for some time so I don´t want to do a mistake :D
Nov 9, 2012 16:48
@jdoe it mean that and is like * and or is like + so its same as (A ∧ B) v C
Nov 9, 2012 16:45
Can I have one additonal simillar question abou associativity?
A ∧ B v C
Nov 9, 2012 16:20
ok thx :-) right associative - thanks :-)
mick: what number? .. I always write brackets too :-)
Nov 9, 2012 16:16
I mean if is the multiple implication ok its like:
A => B => C
Nov 9, 2012 16:15
Hello, please is this formula correctly wrote?
Nov 9, 2012 16:14
Nov 7, 2012 20:16
@Charlie thanks for advise, but it's probably to late for edit ..
Nov 7, 2012 20:12
*right
Nov 7, 2012 20:11
Am I write if I say that every decreasing sequence is limited from above?
Hence the sequece which is decreasing and isn't limited from above doesn't exist?
Nov 7, 2012 19:14
1-1/n is fine, thanks a lot :) and not I haven´t maden my account few minutes ago. And I tryed to solve it but, I went wrong way, so thanks :)
Nov 7, 2012 19:06
i want liman=lima−1n?
Nov 7, 2012 19:05
sorry somebody switched off my comp :/
If strictly monotone means that for n1, n2: n1<n2: an1 < an2 than yes, and the limit is ok
sorry for my english
Nov 7, 2012 18:56
Only solution I can imagine is an = {1} if its possible set the sequence finite.
Nov 7, 2012 18:55
Hello, does exist sharply increasing sequence which have limit an same as limit 1/an ?
Nov 7, 2012 14:54
Oh I just have got it! Thanks!
Nov 7, 2012 14:53
But the plane is defined by 3 points so these 8 together don´t give me one plane, do they?
Nov 7, 2012 14:51
Hello! I have a problem with homework from combinations a I don't know how to solve it.
Let's have 15 points and 8 of them are in one plane. How many planes set these points?
I have a solution: 7C(2,8)+ 8C(2,7)+C(3,7) + 1. And I need to know where did I got the 1? Sorry for my english :)
Oct 21, 2012 15:15
So bye
Oct 21, 2012 15:11
I turned the line axis in my head .. stupid mistake
Oct 21, 2012 15:09
thanks a lot guys you really helped me
Oct 21, 2012 15:08
*definition
Oct 21, 2012 15:07
so 0 fits to the definitio
Oct 21, 2012 15:07
its not 1, 1/2,1/3 ... but 1/n ... 1/4,1/3,1/2,1
Oct 21, 2012 15:07
its not 1,1/2,1/
Oct 21, 2012 15:06
I get it
Oct 21, 2012 15:05
@BrianM.Scott and if i do same with 0? I have interval (-0.5,0.5) if epsilon is 0.5
Oct 21, 2012 15:04
@BrianM.Scott 1 seems clear
Oct 21, 2012 15:01
@JasperLoy Than i draw circle around 1
Oct 21, 2012 15:01
@JasperLoy 1,1/2,1/3 ..
Oct 21, 2012 15:00
@JasperLoy Ok, so I draw my set
Oct 21, 2012 14:59
@BrianM.Scott It's better but I'm still little lost ... It's possible to use it for example for number 1?
Oct 21, 2012 14:41
@Jayesh give mi a minute
Oct 21, 2012 14:40
@JasperLoy why?
Oct 21, 2012 14:38
@JasperLoy my set A is 1/2, 1/3,1/4,1/5,1/6 ...
Oct 21, 2012 14:36
@PantelisSopasakis I can use the definition on 1/x where x is Real, but I'm lost when the it's 1/n and the n is Natural
Oct 21, 2012 14:34
@PantelisSopasakis Can I ask on that set now?
Oct 21, 2012 14:33
thanks it works now
Oct 21, 2012 14:29
render MathJax
Oct 21, 2012 14:29
@robjohn yes
Oct 21, 2012 14:28
@yes
Oct 21, 2012 14:25
javascript:(function(){if(window.MathJax===undefined){var%20script%20=%20documen‌​t.createElement("script");script.type%20=%20"text/javascript";script.src%20=%20"h‌​ttp://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML";var%20config%20=%20'MathJax.Hub.Config({'%20+%20'extensions:%20["tex2j‌​ax.js"],'%20+%20'tex2jax:%20{%20inlineMath:%20[["$","$"],["\\\\\\\\\\\(","\\\\\\\\\\\)"]],%20displayM‌​ath:%20[["$$","$$"],["\\\[","\\\]"]],%20processEscapes:%20true%20},'%20+%20'jax:%20["‌​input/TeX","output/HTML-CSS"]'%20+%20'});'%20+%20'MathJax.Hub.Startup.onload();';if%20(window.opera)%20{‌​script.innerHTML%20=%20config}%20else%20{script.text%20=%20config}%20document.get‌​ElementsByTagName("head")[0].appendChild(script);}else{MathJax.Hub.Queue(["Typese‌​t",MathJax.Hub]);}$('html').ajaxComplete(function(){MathJax.Hub.Queue(["Typeset",‌​MathJax.Hub]);});})();
Oct 21, 2012 14:24
I´m sory rof maybe stupid question, but what is ChatJax? It's some plugin. Do i need install it? Or should I just run it? How? I tryied the links in rulles but it seems there is nothing useful
Oct 21, 2012 14:22
$\frac{1}{2}$
Oct 21, 2012 14:22
rendering on
Oct 21, 2012 14:21
@PantelisSopasakis i looked here math.ucla.edu/~robjohn/math/mathjax.html