Apodictic propositions contrast with assertoric propositions, which merely assert that something is (or is not) the case, and with problematic propositions, which assert only the possibility of something being true. For instance, "Two plus two equals four" is apodictic. "Chicago is larger than Omaha" is assertoric. "A corporation could be wealthier than a country" is problematic. In Aristotelian logic, "apodictic" is opposed to "dialectic," as scientific proof is opposed to probable reasoning. Kant contrasts "apodictic" with "problematic" and "assertoric" in the Critique of Pure Reason, page A70/B95.
Economist Ludwig von Mises of the Austrian school asserted the apodictic truth of theories arrived at through praxeological reasoning.
The expression "apodictic" is also sometimes applied to a style of argumentation in which a person presents his reasoning as being categorically true, even if it is not necessarily so. An example of such a usage might be: "Demonstrate less apodicticity! You haven't considered several facets of the question."
References
- Flew, Anthony. A Dictionary of Philosophy - Revised Second Edition St. Martin's Press, NY, 1979
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