This is not exhaustive, nor comprehensive. I just wanted to share some fun facts in the form of one-line constructive definitions. The idea is that every word in each non-fundamental definition is previously defined. It is, in fact, not the case. However, you can still use it to learn new things. It also works as a way to roughly judge about the extent of my knowledge. I will also and primarily use it as a repository of concepts that I like to work with, in order form me to automate the process of exploring new ideas, drafting proofs and making discoveries. Enjoy!