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It further implies that metaphysics and ethics, so understood, are to one another as-on Bochenski's analysis-"theoretical propositions" (tlzeoretisclze Stitze) are to "practical propositions" (praktische Siitze). This means that metaphysics and ethics in turn explicate the foundations of witness-its theoretical and practical foundations respectively-in the same way in which, more generalJygenerally, the two types of "propositions" (Siitze) in turn explicate the foundations-theoretical and practical-of what Bochenski fu rther distinguishes from both types as "instructions" (Weisllflgell). 

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