In 19-31. (1) prove that the relation is an equivalence relation. and(2) describe the distinct equivalence classes of each relation.
24. Let A be the set of identifiers in a computer program. Itis common for identifiers to be used for only a short part of the execution time of a program and not to be used again to execute other parts of the program. In such cases, arranging for identifiers to share memory locations makes efficient use of a computer’s memory capacity. Define a relation R onA as follows: For all identifiers x and y.
xRythe values of x and y are stored in the same memory location during execution of the program.
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