Final answer:
The analogical premise is important in reasoning by perfect analogy because it allows us to make logical deductions based on known objects and properties. By identifying similarities between known and unknown objects, we can infer properties of the unknown object.
Step-by-step explanation:
The analogical premise is important in terms of the validity of reasoning by perfect analogy because it provides the basis for making inferences from known objects to similar objects. Analogies use an object that is known to draw inferences about other similar objects.
By identifying the properties shared by the known and unknown objects, we can make logical deductions. For example, if we know that X has a property P and Y has that property P and an additional property S, we can infer that X also has the property S because it has the property P.