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2.3. EXERCISE: Defining Relations
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2. BUILDING AND FINDING
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2.1. Defining Relations
2.2. Correcting Mistakes, part 1
If you make a mistake or change your mind, you can undefine the relations, using
undefine
(
§2.5
).
Undefine the two relations we just defined, by evaluating:
(undefine isa ako)
William J. Rapaport 2003-09-22
