mathmath333
  • mathmath333
what does this sign means ?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
mathmath333
  • mathmath333
reversed A
mathmath333
  • mathmath333
|dw:1435770248432:dw|
SolomonZelman
  • SolomonZelman
for all

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More answers

geerky42
  • geerky42
\thread
SolomonZelman
  • SolomonZelman
like if you say \(\forall n\in {\bf R}\)
mathmath333
  • mathmath333
what is thread ?
SolomonZelman
  • SolomonZelman
that means for all real numbers n
SolomonZelman
  • SolomonZelman
for all, that is the meaning
SolomonZelman
  • SolomonZelman
questions?
geerky42
  • geerky42
Just my way to saying that @SolomonZelman had it all. No need to get replies from other users
mathmath333
  • mathmath333
ok tnx . it means (for all)
SolomonZelman
  • SolomonZelman
tnx:) I saw that sign once, never used it tho' because no one qould get it, although it is a good tool to save space.
SolomonZelman
  • SolomonZelman
would*
SolomonZelman
  • SolomonZelman
Is that from a tutorial of a person who is obsessed with notations?
SolomonZelman
  • SolomonZelman
I don't really se it used alot... in any case, you now know it:)
mathmath333
  • mathmath333
yep i m proud i know it
SolomonZelman
  • SolomonZelman
I clicked on spraguer that I saw just now, and glitched:D
ganeshie8
  • ganeshie8
\[\forall x\in\mathbb{R^+}~x\gt \sin x\]
mathmath333
  • mathmath333
is their any link that gives informtion on all mathmatical signs and its meaning
ganeshie8
  • ganeshie8
look up quantifiers
mathmath333
  • mathmath333
\(0>\sin 0\) ?
ganeshie8
  • ganeshie8
0 is not a positive real number
mathmath333
  • mathmath333
oh forget that \(\huge \mathbb{R^{\color{red}{+}}}\)
ganeshie8
  • ganeshie8
you may think of \(\forall \) as a for/foreach loop in a programming language
ganeshie8
  • ganeshie8
\[\forall x\in \color{red}{X} ~ ~ \color{blue}{\text{statement}}\] the \(\color{blue}{\text{statement}}\) is applicable to "all" the elements of set \(\color{red}{X}\)
mathmath333
  • mathmath333
i have also just seen reversed E |dw:1435771106226:dw|
mathmath333
  • mathmath333
ok i see that sign \(\forall\) is from set theory
mathmath333
  • mathmath333
i have seen as "there exist" written as it meaning
ganeshie8
  • ganeshie8
\(\exists\) refers to existence of at least one that satisfies the statement that follows
ganeshie8
  • ganeshie8
\[\exists x\in \mathbb{R}~:~x^2=2 \] means there exists at least one real number \(x\) "such that" the square of it equals 2
SolomonZelman
  • SolomonZelman
yes, lol, √2
SolomonZelman
  • SolomonZelman
or -√2
SolomonZelman
  • SolomonZelman
... ±√2
SolomonZelman
  • SolomonZelman
(i am using alt shortcuts)
ganeshie8
  • ganeshie8
can you guess what below statement means \[\large \not \exists x\in \mathbb{Q}~:~x^2=2 \]
mathmath333
  • mathmath333
what is \(\large \mathbb{Q}\) ?
ganeshie8
  • ganeshie8
"set" of rational numbers
mathmath333
  • mathmath333
there exists no rational numbers that satisfy \(x^2=2\)
ganeshie8
  • ganeshie8
Yes, thats same as saying \(\sqrt{2}\) is irrational
mathmath333
  • mathmath333
\(\not \exists \mathbb{GM}:\text{GM}:\text{stockfish6.0} ::1:0\) guess the statement
ganeshie8
  • ganeshie8
there doesn't exist a grandmaster who beat the stockfish 1-0
ganeshie8
  • ganeshie8
good one!
mathmath333
  • mathmath333
yep correct
mathmath333
  • mathmath333
it is important to mention stockfish version 6.0

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