Bartle & Sherbert

It's a lot, it's a lot, it's a lot like lim.

Let's play a game with real quantities,
The game with added reality,
You're given epsilon - find N if you please.
It's all in Bartle and Sherbert.
It's all in Bartle and Sherbert.

There's the quotient rule - it's really rather neat,
With u on top, and v underneath.
For triangle inequalities,
Refer to Bartle and Sherbert.
Refer to Bartle and Sherbert.

You may think you know
Convergence of series,
But can you decide
What happens in theory
For an infinite sum
As z tends to 1?

Continuity's the name of the game,
Sequential or standard - they're really the same:
f(x) behaves well as x tends to k.
Let's play Bartle and Sherbert.
Let's play Bartle and Sherbert.

[Repeat chorus]