An interesting tidbit: can your programming language parse a < b < c? Perl can’t. Ruby can, but returns an error “undefined method `>’ for false:FalseClass.” Interestingly, Python accepts it, and even gives the correct result. Something clever must be going on in the parser to make that work.
Update October 17: Although Lisp can’t parse the expression directly, it does correctly handle the equivalent S-expression (< a b c).
Lisp: (
JavaScript handles this, but maybe not in the way you mean. It’s the equivalent of writing (a