In accordance with longstanding principles of international law, expounded with remarkable consistency by numerous officials and scholars from various countries over hundreds of years, when the USSR became extinct, its bilateral, non-dispositive treaties lapsed.

CENTERFORSECURITYPOLICY: Center For Security Policy

Sargent, in particular, was concerned with the internal consistency of economic models: the results had to follow, with unbroken logic, from first principles.

BBC: The Nobel prize, and the ONS