Definition of the Composition of Two Functions

[number0]

Homework Statement

In general, let f: A -> T and g: B -> C. Find a condition on the domain of g (other than B = T) that results in a meaningful definition of the composite function g((f(x)): A -> C.

Homework Equations

None.

The Attempt at a Solution

I could not find a starting place for this problem.

 

[fzero]

You might want to recall the definition of the image of a function.