Pearson eText for Concepts of Programming Languages -- Instant Access (Pearson+)
Pearson eText for Concepts of Programming Languages -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135102268
Author: Robert Sebesta
Publisher: PEARSON+
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Chapter 3, Problem 26RQ

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Preconditions and postconditions in axiomatic semantic:

A statement written immediately after a program statement, which gives the constraint or any value addition to the variables used in program statements, which is known as assertion or predicates are known to be precondition or postcondition.

For any two consecutive statements, the postcondition of the first serves as the precondition for the second. To develop an actual axiomatic description, every program statement should hold valid and have both precondition and postcondition...

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