As understand it, lists are *ordered* collections of elements, whereas as a set is an *unordered* collection of elements. So when comparing lists, the expression $\{3,4,5\}=\{4,5,3\}$ will be evaluated as $\{false,false,false\}$. Comparing any two lists also requires that they have the same number of elements, so expressions like $\{3,4,5,5\}=\{3,4,5\}$ will be undefined. What I would like is to be able to define set objects and perform typical operations on them similar to how python defines and operates on sets (e.g. set.union(), set.intersection, etc). That is, I would like to be able to define unordered list of arbitrary elements which ignores any duplicate elements, so an expression like $\{3,4,5,5\}=\{4,5,3\}$ will simply be evaluated as $true$ since the operands in this case would be treated as equivalent sets. So, are there any well-known methods/techniques for generating "set-like" objects from lists using only the builtin nspire CX CAS commands and logic?

Set operations on lists (e.g union, intersection, difference, etc)?