In algebra, the operation of substitution can be applied in various contexts involving formal objects containing symbols; the operation consists of systematically replacing occurrences of some symbol by a given value. Substitution is a basic operation of computer algebra.
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Answer:
In English grammar, substitution is the replacement of a word or phrase with a filler word such as "one", "so", or "do" in order to avoid repetition.
Consider the following example from Gelett Burgess' poem "The Purple Cow.
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Substitution
Algebra
In algebra, the operation of substitution can be applied in various contexts involving formal objects containing symbols; the operation consists of systematically replacing occurrences of some symbol by a given value. Substitution is a basic operation of computer algebra.