PlanetMath (more info)
 Math for the people, by the people. Sponsor PlanetMath
Encyclopedia | Requests | Forums | Docs | Wiki | Random | RSS  
Login
create new user
name:
pass:
forget your password?
Main Menu
sections
Encyclopædia
Papers
Books
Expositions

meta
Requests (236)
Orphanage
Unclass'd (1)
Unproven (540)
Corrections (46)
Classification

talkback
Polls
Forums
Feedback
Bug Reports

downloads
Snapshots
PM Book

information
News
Docs
Wiki
ChangeLog
TODO List
Copyright
About
References to 'triangle inequality'
1. $C^n$ norm by rspuzio
2. absolute value by djao
3. absolute value in a vector lattice by CWoo
4. all norms on finite-dimensional vector spaces are equivalent by jirka
5. arclength as filtered limit by rspuzio
6. Banach-Mazur compactum by bbukh
7. bound on matrix differential equation by rspuzio
8. continuity of natural power by pahio
9. distance to a set by bbukh
10. every normed space with Schauder basis is separable by asteroid
11. example of Dirac sequence by Johan
12. example of pseudometric space by mathcam
13. extended norm by rspuzio
14. finite rank approximation on separable Hilbert spaces by karstenb
15. Fr\'echet space by rmilson
16. Hausdorff metric by Koro
17. Hausdorff metric inherits completeness by mps
18. if $d(x_i, x_{i+1})<1/2^i$ then $x_i$ is a Cauchy sequence by matte
19. locally bounded by jirka
20. metric spaces are Hausdorff by waj
21. near operators by mathcam
22. prime theorem of a convergent sequence, a by georgiosl
23. probabilistic metric space by CWoo
24. proof of Banach fixed point theorem by asteroid
25. proof of Clarkson inequality by CWoo
26. proof of Erd\"os-Anning Theorem by lieven
27. proof of Lebesgue number lemma by scanez
28. proof of Minkowski inequality by Andrea Ambrosio
29. proof of Ostrowski's valuation theorem by rm50
30. proof of Ptolemy's inequality by mathwizard
31. proof of Pythagorean triples by fredlb
32. proof of Silverman-Toeplitz theorem by rspuzio
33. properties of the Lebesgue integral of Lebesgue integrable functions by Wkbj79
34. pseudometric topology by matte
35. real part series and imaginary part series by pahio
36. relative entropy by Mathprof
37. semimetric by Koro
38. straight line is shortest curve between two points by stevecheng
39. ultrametric by Koro