The practice of first developing a clear and precise definition of a process without regard for efficiency, and then using it as a guide and a test i… - Kenneth E. Iverson

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The practice of first developing a clear and precise definition of a process without regard for efficiency, and then using it as a guide and a test in exploring equivalent processes possessing other characteristics, such as greater efficiency, is very common in mathematics. It is a very fruitful practice which should not be blighted by premature emphasis on efficiency in computer execution.