principle of conjugation based on the concepts of structural relativity (1946) and of irreversibility of temporal action (1948). The acts of absorption and emission of a quantum, making up the structure of the Universe are objective in nature. Nevertheless, the structure of the global reality can never be represented in its innumerable process varieties as a unique explicative system and can be adequately tested through the conjugate and alternative use of four distinct paradigmatical classes of systems: deterministic, probabilistic, indeterministic and informational." /> Continuity and discontinuity - Tonini Valerio | sdvig press