What does it mean if a function is onto?
137485
Transformation T is... "onto"?
63149
Notation for functions vs. numbers
95319
What does this weird function definition mean?
22989
A doubt on the definition of limit of a function definition
151816
What is the semantics of 'is' operator in Python?
92314
When does function composition commute?
100283
How to understand the notion of a differential of a function
32575
What's the name for the property of a function $f$ that means $f(f(x))=x$?
50725
Inverse of function is continuous or not?
57938
When do two functions become equal?
43667
Is $f(x,y(x))$ a function of two variables? If so, how is that possible?
29189
What's the difference between a method and a function?
40232
What do we mean when we say "Let $x$ be an element of the set $\mathbb{R}$"?
18493
Why is an empty function considered a function?
64110
What does circle symbol between two functions means?
97835
Difference between .on() functions calls
65116
Function with condition