It's De-Lovely

(With apologies to Cole Porter)

You take two sets, you form their meet,
Complementation is quite a treat,
It's delightful, it's DeMorgan, it's d'algebra.

You grab a zee in the complex plane,
Taking its power is not a pain,
It's delicious, it's DeMoivre, it's d'analysis.

We can tell at a glance
Why the math folks sing "Vive la France",
We can swear their view of logic's
Gotta be true, "true as l'bleu".

But don't take sides, just have some fun,
All mathematics is one-to-one,
It's delightful, it's delicious,
It's de-stributive, it's dee-wye-dee-ex,
It's de-lemma, it's de-limit,
it's de-luxe, it's de-lovely.
American Mathematical Monthly,, vol. 103, no. 9, 1996.