Axiomatic Universe: Philosophical Point of View

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The discussion centers on whether the universe can be considered an axiomatic system, emphasizing the need for certainty in the existence of laws and the logical nature of the universe. It raises the philosophical inquiry of whether conclusions derived from these laws are necessarily true, noting that standard logic aligns with observed phenomena. The conversation also questions if the universe's logic implies completeness, linking this to the existence of free will. Some participants argue against viewing scientific knowledge as static truths derived from fixed axioms, suggesting instead that axioms should be seen as dynamic, evolving from experimental observations. Ultimately, the debate highlights the complexities of defining the universe's logical structure and its implications for understanding reality.
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is the universe an axiomatic system? I am curious to know the philosophical point of view on this?
 
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To qualify the universe as an axiomatic system, we would have to 1. be certain that laws exist in our universe 2. that the universe is logical. Now, in my opinion, the second is the more worthy of philosophical inquiry. Reinterpreted, it requires us to establish that conclusions reached by means of standard logic from the said laws, assuming they exist, are necessarily true statements in our universe.

That said, standard logic is not arbitrary but rather conceived to agree with what we observe of the universe. Therefore the question "is the universe logical" is equivalent to the question "do things that are reached by induction form truths?" and we know that it can neither be answered in affirmative nor the negative.

We are then led to the following question: is there a logic to our universe? I'm not going to try to answer that question because I don't think any answer I would produce would present points that I haven't already raised.

Also, if the universe is a logical system, is it complete? That question raises the classic question "does free will exist?" as if the universe is indeed a complete logical system, free will cannot exist.
 
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captain said:
is the universe an axiomatic system? I am curious to know the philosophical point of view on this?

Before attempting to answer I wonder what you mean. The question is unclear to me. I assume that you mean that either it is, or it's not?

Suppose it is
or
Suppose it's not

then what conclusions would you draw from each case and what difference does it make?

If you are thinking of a scientific method consisting of constructing/finding axiom systems, so that all our knowledge of the world would follow by deductions then I do not think that is a good idea. To me that is an out of faishon and static view of science, that somehow smells like seeing knowledge as uncovering universal truth, and the axioms of the universe are those fundamental truths, from which all that can be said follows deductively.

Often the models of science, when matured and tested good, are reworked into axiomatic systems, in which you have theorems etc. That is very handy, but I don't think that reflects the deepest nature of science if you consider the axioms universal truths.

However if you consider the axioms to be dynamical, then the overall picture of making deductions from an inductively guessed set of axioms, is after all just a particular way of making inductions. This type of axiomatisation makes more sense to me. Then the axioms really somehow serve the purpose of "probable laws", inferred presumably from experiments. Wether we choose to call them postulated axioms, or inferred laws of nature - I see no major difference beyond the words.

/Fredrik
 
https://en.wikipedia.org/wiki/Recombination_(cosmology) Was a matter density right after the decoupling low enough to consider the vacuum as the actual vacuum, and not the medium through which the light propagates with the speed lower than ##({\epsilon_0\mu_0})^{-1/2}##? I'm asking this in context of the calculation of the observable universe radius, where the time integral of the inverse of the scale factor is multiplied by the constant speed of light ##c##.
The formal paper is here. The Rutgers University news has published a story about an image being closely examined at their New Brunswick campus. Here is an excerpt: Computer modeling of the gravitational lens by Keeton and Eid showed that the four visible foreground galaxies causing the gravitational bending couldn’t explain the details of the five-image pattern. Only with the addition of a large, invisible mass, in this case, a dark matter halo, could the model match the observations...
Hi, I’m pretty new to cosmology and I’m trying to get my head around the Big Bang and the potential infinite extent of the universe as a whole. There’s lots of misleading info out there but this forum and a few others have helped me and I just wanted to check I have the right idea. The Big Bang was the creation of space and time. At this instant t=0 space was infinite in size but the scale factor was zero. I’m picturing it (hopefully correctly) like an excel spreadsheet with infinite...

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