This isn't the same thing -- the Python syntax is asking for a < b and b >= c, while only evaluating b once. There are many infix math libraries for lisps (e.g.

This isn't the same thing -- the Python syntax is asking for a < b and b >= c, while only evaluating b once. There are many infix math libraries for lisps (e.g. this one from 1995: https://www.cs.cmu.edu/afs/cs/project/ai-repository/ai/lang/lisp/code/syntax/infix/infix.cl https://www.cs.cmu.edu/afs/cs/project/ai-repository/ai/lang/...) that allow things like #I(a < b >= c), but the trick is only evaluating b once. (The linked lib will expand into two evaluations if b is an expression.)