What are well-defined functions?
90703
"Well defined" function - What does it mean?
57072
should function be defined before it is used in python?
35767
What is the difference between a predicate and function?
136359
How to define a complex function with assumptions?
118416
How do I list the functions defined in my shell?
54685
Defining metrics as a function to something other than the reals.
77258
Define parameterized function
56156
Composition and Onto Functions
55308
Examining the function
142067
Codomain of a function
15690
Is a function defined at a single point continuous?
155434
How is the codomain for a function defined?
44148
Functions that are their own inverse.
115878
Continuous unbounded but integrable functions
56827
Functions that are their Own nth Derivatives for Real $n$
33788
List of compilable functions
95319
What does this weird function definition mean?