"Apodictic", also spelled "apodeictic" (Ancient Greek:ἀποδεικτικός, "capable of demonstration"), is anadjectival expression fromAristotelean logic that refers topropositions that are demonstrably, necessarily orself-evidently true.^[1]Apodicticity orapodixis is the correspondingabstract noun, referring tological certainty.

Apodictic propositions contrast withassertoric propositions, which merely assert that something is (or is not) true, and with problematic propositions, which assert only the possibility of something's being true. Apodictic judgments are clearly provable or logically certain. For instance, "Three plus one equals four" is apodictic, because it is true by definition. "Chicago is larger than Omaha" is assertoric. "A corporation could be wealthier than a country" is problematic. InAristotelian logic, "apodictic" is opposed to "dialectic", asscientific proof is opposed to philosophicalreasoning.Kant contrasted "apodictic" with "problematic" and "assertoric" in theCritique of Pure Reason (A70/B95 - A76/B101).^[2]

Hans Reichenbach, one of the founders oflogical positivism, offered a modified version ofImmanuel Kant'sa priorism by distinguishing betweenapodictic a priorism andconstitutive a priorism.^[3]

• Apophantic – Specific type of declaratory statement

• Antony Flew.A Dictionary of Philosophy - Revised Second Edition.St. Martin's Press, NY, 1979

• The dictionary definition ofapodictic at Wiktionary

• Necessity
• Term logic
• Ancient Greek logic
• Concepts in logic

• Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference
• Articles with short description
• Short description is different from Wikidata
• Articles containing Ancient Greek (to 1453)-language text