l construction. Stated more exactly: When two clocks arranged at rest in different places of a reference-body are set in such as manner that a particular position of the pointers of one clock is simultaneous (in the above sense) with the same position of the other clock, the identical settings are always simultaneous (in the sense of the above definition) Time then is a defined term. The transforms and the relativity of local time are also defined terms in the paradigm, but the concept of local time as seen in its own reference frame is still the same primitive term as in the previous paradigm, with the exception that it is not absolute.There are similarities in what Einstein thought of as a theory and what Kuhn thought of as a paradigm. Einstein says:A proposition is correct if, within a logical system, it is deduced according to the accepted logical rules. A system has truth-content according to the certainty and completeness of its possibility of coordination with the totality of experience. A correct proposition borrows its truth from the truth-content of the system to which it belongs. The difference is that Einstein thought of his world theories as things that are capable of having a truth-content whereas Kuhn thought that his paradigms could not have truth-content. They both, however, say that the basic concepts of a theory or of a paradigm are arbitrary (Kuhn calls it arational but the meaning is the same in this context.) Within that logical system or paradigm the correctness of the proposition or theory is determined by whether or not it can be obtained using the accepted logical rules or if it is a proper deduction in the context of that paradigm. There are similarities in the way that Einstein and Kuhn approached science, as well as many differences. The similarities include the arational nature of revolutionary science as well as the idea that normal science must be conducted in the logical system with specific logical rule...
