Can a Metric Space be Constructed from the Inequality a <= b + c?

  • Thread starter Thread starter pdonovan
  • Start date Start date
  • Tags Tags
    Proof
Click For Summary
SUMMARY

The discussion focuses on proving the inequality a/(a + 1) <= (b / (b + 1)) + (c / (c + 1)) given the condition a <= b + c, where a, b, and c are non-negative real numbers. The goal is to demonstrate that the metric space defined by e(a,b) = d(a,b)/(1+d(a,b)) exists under these conditions. Participants emphasize the importance of understanding the implications of the initial inequality in constructing the metric space.

PREREQUISITES
  • Understanding of basic inequalities in real analysis
  • Familiarity with metric spaces and their properties
  • Knowledge of the concept of non-negative real numbers
  • Experience with algebraic manipulation of inequalities
NEXT STEPS
  • Study the properties of metric spaces, specifically in the context of real analysis
  • Learn about the triangle inequality and its applications in metric spaces
  • Explore the concept of bounded functions and their implications in inequalities
  • Research examples of constructing metric spaces from various inequalities
USEFUL FOR

Mathematicians, students studying real analysis, and anyone interested in the foundations of metric spaces and inequalities.

pdonovan
Messages
17
Reaction score
0

Homework Statement



Show:
if a <= b + c,
then a/(a + 1) <= (b / (b + 1)) + (c / (c + 1))

I'm really not sure where to start from the initial statement a <= b + c. I'm using this in order to show that the metric space e(a,b) = d(a,b)/(1+d(a,b)) exists. Any help would be greatly appreciated, thank you!
 
Physics news on Phys.org
Also, this is for all a,b,c >= 0.
 

Similar threads

  • · Replies 12 ·
Replies
12
Views
1K
  • · Replies 2 ·
Replies
2
Views
1K
  • · Replies 19 ·
Replies
19
Views
3K
Replies
3
Views
2K
Replies
0
Views
1K
Replies
15
Views
2K
  • · Replies 15 ·
Replies
15
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
Replies
9
Views
3K