| Function | Description |
|---|
set.from-list(xs) | Create a set from list xs of primitive values |
set.to-list | Return sorted list of elements in set s |
set.add | Add element e to set s |
set.remove | Remove element e from set s |
set.contains? | True if set s contains element e |
set.size | Return number of elements in set s |
set.empty?(s) | True if set s has no elements |
set.union | Return union of sets a and b |
set.intersect | Return intersection of sets a and b |
set.diff | Return elements in set a that are not in set b |
(∅) | The empty set |
s: set.from-list([1, 2, 3, 2, 1])
# s contains {1, 2, 3} (duplicates removed)
a: set.from-list([1, 2, 3])
b: set.from-list([2, 3, 4])
u: set.union(a, b) set.to-list # [1, 2, 3, 4]
i: set.intersect(a, b) set.to-list # [2, 3]
d: set.diff(a, b) set.to-list # [1]