• Support PF! Buy your school textbooks, materials and every day products Here!

Epsilon Delta Proofs

  • #1
Hi,

Why is it, that when ever epsilon-delta proofs are done, once delta is found in terms of epsilon, it is reinputed through again? Is there any point to this really?
 

Answers and Replies

  • #2
214
0
The idea is that you make some suggestive calculations to help you find what delta should be. Then you have to go back and make sure it actually works. If you were clever, you could guess delta and then show it works, and skip the finding delta part.
 
  • #3
But aren't those suggestive calculations definitive? That is, they are always true?
 
  • #4
shmoe
Science Advisor
Homework Helper
1,992
1
It's not necessary to reorganize your proof in a way that makes the delta magically appear from thin air, but it often makes a shorter proof. It's mostly for style reasons.
 

Related Threads on Epsilon Delta Proofs

  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
3
Views
4K
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
5
Views
605
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
2
Views
1K
Top