# TIL

37 thoughts
last posted Jan. 23, 2018, 10:28 a.m.

14 earlier thoughts

1

Cayley not only introduced the term "tree" (in the CS sense) to the english language in 1857, he did so as a computer scientist:

• his motivation was abstract parses of concrete syntax
• his investigation distinguishes between commutative and associative operations, and
• his trees have their roots at the top, and their branches opening downwards!

22 later thoughts