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You are here: EASA 6.0 » What is an EASA system? » EASA Guides » Author's Guide » Tree Objects » SET

**Guide Section: Processing Object Data** | **EASAP Tree: DATA PROCESSING **→ **LIST**

**SET** evaluates set operations to be performed on a pair of lists.

- A - B: Minus- A minus B is the set that contains all the elements that are in A but not in B.
- A ^ B: Intersection- A intersection B is the set that contains all the elements that are in both A and B.
- A v B: Union- A union B is the set that contains all the elements in either A or B or both.

Duplicate objects are removed so A ^ A may generate a smaller list than A. Also there is no guarantee as to the order of the elements in the resulting set.

SET | |
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Essential Parameters: | |

List A: | The first LIST |

List B: | The second LIST |

Function: | Intersection, Union, Difference |