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Definition of "Value" |
In computer science, a value is an expression which cannot be evaluated any further (a normal form).The members of a type are the values of that type. For example, the expression "1 + 2" is not a value as it can be reduced to the expression "3". This expression cannot be reduced any further (and is a member of the type Nat) and therefore is a value.The "value of a variable" is given by the corresponding mapping in the environment. In languages with assignable variables it becomes necessary to distinguish between the r-value (or contents) and the l-value (or location) of a variable. |
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