Facts and rules (2)
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Useful information is not always related to a single fact ...
- ... it can be related to a set of individuals (grouped by sex, age, work environment, etc.)
- Atomic statements can be combined in a more expressive form (conditional statements):
- PRECONDITION: the patient is female and suffers from desease Y
- ACTION: she has to be treated with medicine Z
- At the implementation level this form can be represented as:
If-Then