set: Module Index

# Module `set`

## Functions

delete (s, e) | Delete an element from a set
difference (s, t) | Find the difference of two sets
equal (s, t) | Find whether two sets are equal
insert (s, e) | Insert an element into a set
intersection (s, t) | Find the intersection of two sets
member (s, e) | Say whether an element is in a set
propersubset (s, t) | Find whether one set is a proper subset of another
subset (s, t) | Find whether one set is a subset of another
symmetric_difference (s, t) | Find the symmetric difference of two sets
union (s, t) | Find the union of two sets

## Functions

delete (s, e)
  Delete an element from a set

  ### Parameters

  - s: set
  - e: element
difference (s, t)
  Find the difference of two sets

  ### Parameters

  - s: set
  - t: set

  ### Return value:

  s with elements of t removed
equal (s, t)
  Find whether two sets are equal

  ### Parameters

  - s: set
  - t: set

  ### Return value:

  `true` if sets are equal, `false` otherwise
insert (s, e)
  Insert an element into a set

  ### Parameters

  - s: set
  - e: element
intersection (s, t)
  Find the intersection of two sets

  ### Parameters

  - s: set
  - t: set

  ### Return value:

  set intersection of s and t
member (s, e)
  Say whether an element is in a set

  ### Parameters

  - s: set
  - e: element

  ### Return value:

  `true` if e is in set, `false` otherwise
propersubset (s, t)
  Find whether one set is a proper subset of another

  ### Parameters

  - s: set
  - t: set

  ### Return value:

  `true` if s is a proper subset of t, false otherwise
subset (s, t)
  Find whether one set is a subset of another

  ### Parameters

  - s: set
  - t: set

  ### Return value:

  `true` if s is a subset of t, `false` otherwise
symmetric_difference (s, t)
  Find the symmetric difference of two sets

  ### Parameters

  - s: set
  - t: set

  ### Return value:

  elements of s and t that are in s or t but not both
union (s, t)
  Find the union of two sets

  ### Parameters

  - s: set
  - t: set

  ### Return value:

  set union of s and t