Non Computable Functions And Godel's Theorem

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SUMMARY

This discussion centers on the relationship between non-computable functions and Gödel's Incompleteness Theorem, as explored through a proof involving computable functions. The author, Bill, presents a function f(x) mapping natural numbers to binary values and argues that while computable functions are countably infinite, there exist non-computable functions, leading to the conclusion that not all statements in a logical system can be decided. The discussion highlights the necessity of modern computational concepts to understand these results, ultimately reinforcing Gödel's theorem regarding undecidable statements within sufficiently powerful systems.

PREREQUISITES
  • Understanding of computable functions and their properties.
  • Familiarity with Gödel's Incompleteness Theorem.
  • Basic knowledge of formal systems and logical statements.
  • Concepts of decidability and completeness in mathematical logic.
NEXT STEPS
  • Study Gödel's Incompleteness Theorems in detail, focusing on their implications for formal systems.
  • Learn about computability theory, specifically the definitions and examples of computable vs. non-computable functions.
  • Explore the relationship between decidability and completeness in formal logic.
  • Investigate Cantor's diagonal argument and its relevance to non-computable functions.
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Mathematicians, computer scientists, logicians, and anyone interested in the foundations of mathematics and theoretical computer science.

  • #31
you lost me here.

bhobba said:
Well all computer programs are countable because they use a finite number of characters and are of finite length.

Who wrote the internet? What is a computer program if not the internet? Is it done? It's like you are drawing a line across some joint of a thing and then counting the bones on one side.
 
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  • #32
Jimster41 said:
What is a computer program if not the internet?

I suggest you look into Turing Machines.

Thanks
Bill
 
  • #33
Jimster41 said:
you lost me here.
Who wrote the internet? What is a computer program if not the internet? Is it done? It's like you are drawing a line across some joint of a thing and then counting the bones on one side.
As @bhobba points out, you do not seem to have the technical background yet to be throwing out a philosophical question in this technical thread. Please do some reading about the technical aspects of this discussion, and then if you have pertinent questions, go ahead and post them in context. Thank you.
 
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