Erdös Writing Like a Programmer

I dunno about that; [a,b) is frequently used to represent the left-closed interval, and what it is an interval over depends on the context. In topology, for example: open intervals over N are commonly written (a,b), but that actually means [a+1, b-1]. You could just as easily write it as [a+1,b) and everyone would already know what you mean.

I learned what [a,b) means before i had even heard of computer.

Also, "like a programmer" sounds weird when programming actually is derived from mathematics and is fairly new.

This post has no substance, is pure spin based on standard mathematical notation. It should be deleted.