What are some techniques I could use to help gain a better understanding of how the concepts in discrete math are used in programming?

I am trying to gain a better understanding of how discrete math concepts (e.g. set theory) are used in programming.

I am familiar with high-school mathematics and have basic understanding of the terms and concepts used in discrete mathematics

I understand languages like Haskell, Lisp, Ruby, Perl, and all C-based languages.