Changes

This theorem explains why all substantive methods are necessarily dynamic. By definition all substantive methods contain at least one contingent proposition so they cannot be immune to change. Thus, from a conjunction of: 1. fallibilism, namely the assumption that all propositions with empirical content are by definition both contingent and therefore fallible , 2. the premise that the rejection of theories can lead to the rejection of methods , and 3. the Synchronism of Method Rejection Theorem (derived in turn from the Method Rejection Theorem and the Third Law), it follows that all substantive methods are necessarily dynamic.