Existence Definition and 543 Threads

Can we agree that "all existents can be measured" ? By existent we mean "an entity (thing) of a specific nature made of specific attributes". By measurement we mean "the identification of a relationship between an attribute of an entity and a standard that serves as a unit". Thus can we agree...

In studying physics and as much literature as I can possibly get my hands on I have come to a theory as to why everything from bosons and quarks up to conscience human beings exists. The simplicity of the concept suprised me but when I tried applying it to every level inbetween I can not find...

About a year and a half ago I came to the decision that I'm no longer christian. Since then I've been studying every source that has anything to do with our beginning. Its through my study of physics and cosmology that I've finally come to my belief in our origins. In the bible it says that...

The recent topic is about existence.I do not want the precise deinition.But, want to know clearly, what does it mean.

I was surfing some old exam questions and I found a nasty one... They asked to prove the existence of fringe effects of the electric field at the edges of a plate capacitor, using Maxwell's laws. In class we always assumed the ideal capacitor without fringe effects so I'm having some kind of...

Need help with ODE and "Existence and Uniqueness Thm" I'm currently helping my neice study for her exams and going though last years test there was this one question that I wasn't sure about. ------------- Considering the initial value problem, \frac{dy}{dx} = f(x,y) Where f(x,y) = (1+x)...

I have a harsh realistic philosophy. I enjoy it too. I am a atheist, and do not believe in any "super natural power" such as a "God." I know that science has its laws and that we were created by some chemical process. Humans contribute nothing, nor is there anything to contribute too. The...

i have some question and i hope i put this topic in the right thread.. >> is there any philosophy or science maybe that until now has not yet been discovered that could serve as an answer to the question about on how all things in the universe [including us] came into existence. For me i...

Lin Alg - Eigenvector Existence proof (More of a proof ?, than eigenvector ?) Here is the question from my book: Show that If \theta \in \mathbb{R}, then the matrix A = \left(\begin{array}{cc}cos \theta & sin \theta \\ sin \theta & -cos \theta \end{array}\right) always has an...

When nothing exists, nothingness exists. (Because I'm alive and we use words.) If so, existence exists. Is there a state where existence doesn't exist? Is there a state where nothingness doesn't exist? When I die, will nothingness continue to exist? When I die, will existence...

"Suppose V is an n-dimensional vector space over an algebraically closed field F. Let T be a linear operator on V. Prove that there exists a cyclic vector for T <=> the minimal polynomial is equal to the characteristic polynomial of T." (A cyclic vector is one such that (v,Tv,...,T^n-1 v) is a...

My friend and I were having a discussion about human existence and sentience, and an interesting idea for an experiment came up. Suppose two genetically identical people of the exact same age and parentage were raised in two identical rooms separated from all living things. There are no...

This is my first post here, so I appologise in advance if this is the wrong forum. Anyway, I was interested to see if this was a generally held opinion. My philosophy course didn't really go into much detail (alas, only Higher level (in Scotland)) I think that the cosmological argument goes as...

Short question: Can anyone provide me with a nice synopsis of how to go about proving the "existence" of some object as often requested in math questions such as, "prove that X really exists and is unique"? In other owrds, in general, when presented with an "existence" question, is there a nice...

Hello, For clarification because of the ambiguous situation in searching for & concerning the Higgs Field. It is with 95% confidence that the Higgs Field exists. Yet it has not been seen as of the end of 2005. I hope LHC/CERN will shed light on the subject. Anyone dealing or knowledge...

is it mathematicly/statisticly impossible for the universe and existence (i'm talking from the moment of the big bang to when life first appeared) to have happened randomly? so many billions and billions of thing's had to happen just right from the big bang to when life first appeared without...

A common argument: Suppose God is all-powerful. Now, let God create a rock so heavy that God cannot lift it. Common conclusions: 1) But if God cannot lift it, then God is not all-powerful. 2) The rock cannot exist since it creates a contradiction. Thus, God is not all-powerful since...

lets say theoretically you have a rope 200,000 miles long and it was pulled tighted with a person on each end one persons pulls the rope towards them instantaneously the rope begins to leave the other person wouldn't this conclude that something is faster than the speed of light?

does nothing exist apart from my mind?

Can anybody help me with the proof of Existence and Uniqueness Theorems.

As I understand it, according to the Copenhagen interpretation of QM, nothing can be said to exist until it is observed. I have also read that it is impossible to observe virtual particles in an experiment. How is it then that virtual particles can be said to exist?

Hi, Do white holes exist? If not why not? If a white hole is the opposite of a black hole then it will have the following properties:- Black holes converge, localise or attract matter towards a point. white holes diverge, non-localise or repel matter. White holes should therefore be called...

prove that between any two real numbers there is a number of the form \frac{k}{2^n} where k is an integer and n is a natural number.

Can any of you prove the existence of someone or something around you? Or better yet, your own existence? Because the only thing you can really know for certain is your own mind's existence, and even that, one can argue, doesn't exist.

What should I say to people who claim that QM supports the view that the universe couldn't exist without humans or some kind of "observer"? Really?? I see where this comes from, but what is the truth? I'm not talking about getting into an ontological argument- just what QM really has to say on...

"...if god exist..." ... and in the spirit of all those replies... ... let us vote!...

Do you think that Big Bang theory reject God existence? I don't know if you discuss about it before.But I want to know do you think that we couldn't accept Big Bang theory and God existence together?

and throughout all this I get the "feeling" that most of you just expect that the "laws" of physics, (whatever they ARE) will remain unchanged thoughout the future! This of course cannot be assumed! Time, space, matter, of ALL types could very well come to an END in the NEXT SECOND! Can...

I heard that there are so many conditions neccesary for us who are living on the Earth. Surely somebody must have collected them before. But I have a suggestion. What if PF people collect them once again in this thread? Anybody who knows some neccesary conditions for our existence on Earth...

Well hello i have a lots of russian books translated in english by mir publishers i am really fond of them they are quiet good. irodov being best in undergrad physics numericals. now i want to know that since these books were written at time of existence of soviet union and the copyright...

Here's the situation: I'm running over a few thousand files, some of which may have already been processed. In order to decide if a file has to be processed, I check if the corresponding output file exists. The problem: I tried using FILE *f = fopen(<filename>,"r"), and test for f!=0...

I know that the following could sound very ridiculous. But when it comes to the language needed to prove the three invalid, I can't think of any straight way to put it. Can anybody help? 1) The human body is vastly more complex than a jumbo jet. But we say that 'natural events' [Evolution]...

Hi, I have trouble constructing the proof for the existence of a solution u that vanishes at some point in an open interval (a, b) for the Sturm-Liouville differential equation: \frac{d}{dx} (P(x) \frac{du}{dx}) + Q(x)u = 0 We can assume that P is continuously differentiable and greater...

If I'm writing a proof that depends upon the assumption that a set of unique identifiers (integers, names, etc) must have a "greatest" element under some ordering scheme, what do I need in order to be entitled to make that assertion?

Hi everybody, I guess most of you know how a function is defined from a set A to a set B. How do we prove that many different functions exist (usually, if sets A and B are for example R) from A to B? Of course we can come up with many different functions, real ones for example, but is there...

Hartshorne's (1962) proof of the existence of god: (~) = not, (v) = or, (&) = and, (->) = implies (<->) = equivalence, [] = necessarily, <> = possibly, (=>) = strict implication, (p => q) =df [](p -> q) <>p =df ~[]~p. g = god exists. The argument is thus: 1. g => []g...

Our lecture on the Physics of Solid State raised a question. Professor postulated that the condition of the existence of metals is "Debay radius<Bohr radius", but the explanation was quite unclear. Could someone help me?

how does the impulse momentum theorem and conservation of momentum show the existence of the third law of motion? impulse momentum theorem- the force of an object a that hits object b will create a force. The force that object b exerts back on object a should be the same as the force object a...

Hello, How can i proof the existence of a solution of a PDE on H^(-1)( Omega)? :mad:

According to this page in wikipedia, http://en.wikipedia.org/wiki/Quark when quarks are pulled from one another at some point a new quark/anti quark pops into existence. What would happen if a lump of quark matter was captured by a black hole, Could it produce an endless stream of new quarks...

1st i am very glad to know that a very big number of peapople are really interested in this forum. i congratulate bcz ur treads are pretty impressive and i am enjoying my time. i am terribly sorry i couldn't be here before now i was very busy. about the subject now: for those who want proof of...

Can we proove that for any separated topological space, there exists a metric? Seratend.

Ok, I realize that this question is rather broad, but how can one determine whether a function has an antiderivative or not? I know that for an arbitrary function, chances are that it won't have a "nice" one. The function e^(-x²) comes to my mind. However, if I understand it correctly, its...

"Argument for the Existence of God" I find this very interesting and humorous: http://members.cox.net/wwcw/godexists.html#bot1 any thoughs?

What is the difference between being not alive and not existing? That is, does a dead body exist? Whitestar

According to this paper, http://arxiv.org/abs/math.GM/0108201 Paul Erdos (of Erdos number fame) conjectured the existence of The Book, a book that contains all the smallest proofs of mathematics arranged in lexical order. What are your thoughts on it, do you believe in the existence of such book?

So just how did the brain come into existence physically? ... To exploit an available resource perhaps? :wink: Which, I think is the whole point, why does anything evolve, if not to exploit the resources at hand? Why did our eyes elvolve, if not to exploit the available source of light? What...

Time is wholy contingent upon the fact that a material Universe exists. Meaning, if there is no physical distance by which to measure the rate of change, there would be no time. However, that isn't to say there wasn't an immaterial universe that existed prior to this, otherwise where would the...

How would we prove that something exists? What is the least amount of information we would need to prove the existence of a rock? Descartes' "I think therefore I am" comes to mind. Let's limit the proof to only inanimate objects.

I contend that it is not. No proof will be given. I would however like to see some comments that it is. What proof do we have that our Existence is physical?