>>10098921

We get multiple pieces of notation from various languages. Arabic gave us a standard way to talk about base 10 numerals and more importantly 0. The concept of emptiness, of base case, etc. has been the cornerstone of counterexamples to claims of universal statements, theorems, etc.

More to the point, the Greek alphabet is used because their mathematics and alphabet are a big part of mathematical culture and history. They're used because they are unabashedly associated with mathematics, and when looking at them, it is clear that you are looking at mathematics.

Also, a lot of the Greek was used because it had specific connotations. Lowercase epsilon and delta is associated small distances and discrepancies (evident if you've taken any level of analysis), uppercase delta associated with change, alpha and beta associated with random specification (like a and b, or alice and bob in a written example), sigma a sum, etc. . Sometimes physics and CS tends to use different notation, but even then, they don't stray far away from the original connotation.