Can anyone please check/verify this proof about rational numbers?

Click For Summary
SUMMARY

The discussion focuses on proving that the square roots of 3, 5, 7, 24, and 31 are not rational numbers. Participants emphasize the need for a unified proof that can address all these cases simultaneously. The conversation highlights the importance of utilizing mathematical techniques to demonstrate the irrationality of these square roots, specifically referencing the application of proof strategies that can be generalized across multiple instances.

PREREQUISITES
  • Understanding of irrational numbers and their properties
  • Familiarity with proof techniques in mathematics
  • Knowledge of the PF LaTeX feature for mathematical expressions
  • Basic concepts of number theory
NEXT STEPS
  • Research the proof by contradiction method for demonstrating irrationality
  • Explore the properties of square roots and their classifications
  • Learn how to use PF LaTeX for formatting mathematical proofs
  • Study examples of generalized proofs in number theory
USEFUL FOR

Mathematics students, educators, and anyone interested in number theory and the properties of irrational numbers.

Math100
Messages
817
Reaction score
230
Homework Statement
None.
Relevant Equations
None.
Show sqrt(3), sqrt(5), sqrt(7), sqrt(24), and sqrt(31) are not rational numbers.
 

Attachments

  • Like
Likes   Reactions: THAUROS
Physics news on Phys.org
These can all be done in one fell swoop if you think about it.
 
  • Like
Likes   Reactions: Math100
PeroK said:
These can all be done in one fell swoop if you think about it.
Can you please tell me what's that one fell swoop?
 
Math100 said:
Can you please tell me what's that one fell swoop?
It means one proof to cover all those cases.
 
  • Like
Likes   Reactions: Math100
THAUROS said:
Hi, I wanted to share a link that I thought could help but I can't. Sorry!
 
PeroK said:
It means one proof to cover all those cases.
What proof should/do I need to apply for this problem?
 
Math100 said:
What proof should/do I need to apply for this problem?
What's your proof for ##\sqrt 3##? Can you generalise that?
 
@Math100 please post your proof and equations directly in the thread using the PF LaTeX feature, not as a PDF.
 

Similar threads

  • · Replies 30 ·
2
Replies
30
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 2 ·
Replies
2
Views
1K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 5 ·
Replies
5
Views
1K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 18 ·
Replies
18
Views
5K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 9 ·
Replies
9
Views
4K