Most of the reasoning that people do is non-numeric. AI programs often do some numerical calculation, but focus on reasoning with symbols that represent objects and relationships in the real world.

- Objects.
- Properties of objects.
- Relationships among objects.
- Rules about classes of objects.

Examples of symbolic processing:

- Understanding English:
(show me a good chinese restaurant in los altos)

- Reasoning based on general principles:
if: the patient is male then: the patient is not pregnant

- Symbolic mathematics:
If y = m*x+b, what is the derivative of y with respect to x?