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

What Does f : ℕ → ℕ mean?

  • Thread starter student34
  • Start date
  • #1
346
3

Homework Statement



It is in some notes that I found online in an attempt to understand something else that I need to know for a math course.

Homework Equations



f : ℕ → ℕ

The Attempt at a Solution



It seems to mean that a function of some natural number will equal some other natural number such as n^2 where n is an element of the naturals. But I am not sure.
 

Answers and Replies

  • #2
Dick
Science Advisor
Homework Helper
26,258
618

Homework Statement



It is in some notes that I found online in an attempt to understand something else that I need to know for a math course.

Homework Equations



f : ℕ → ℕ

The Attempt at a Solution



It seems to mean that a function of some natural number will equal some other natural number such as n^2 where n is an element of the naturals. But I am not sure.
Yes, it means f is a function that maps the natural numbers into the natural numbers. f(n)=n^2 is a fine example.
 
  • #3
346
3
Yes, it means f is a function that maps the natural numbers into the natural numbers. f(n)=n^2 is a fine example.
Thank-you, that is a relief.
 

Related Threads on What Does f : ℕ → ℕ mean?

Replies
1
Views
2K
  • Last Post
Replies
3
Views
646
  • Last Post
Replies
11
Views
3K
Replies
6
Views
5K
Replies
10
Views
3K
  • Last Post
Replies
4
Views
1K
Replies
2
Views
536
Replies
6
Views
2K
Replies
8
Views
1K
  • Last Post
Replies
4
Views
1K
Top