Programming language theory (PLT) is a branch of computer science that deals with the design, implementation, analysis, characterization, and classification of programming languages and their individual features.
* :scroll: [On the Expressive Power of Programming Languages](scp91-felleisen.ps.gz) [sciencedirect](https://www.sciencedirect.com/science/article/pii/016764239190036W)(Matthias Felleisen): "The literature on programming languages contains an abundance of informal