Use Z3 and SMT-LIB to get a maximum of two values

Question

How do I get the maximum of a formula using smt-lib2?

I want something like this:

(declare-fun x () Int)
(declare-fun y () Int)
(declare-fun z () Int         


        

Answer 1

You've got abs, and per basic math max(a,b) = (a+b+abs(a-b))/2