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--- public:t-709-aies-2026:aies-2026:intro [2026/08/19 11:27] – [Causation] thorisson
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 |  How it relates to logic  | If causal relations are rules, and the world has regularity, then the world is rules-based. Reasoning is the method of following logic when working with rules. It means we can reason about the world.  |
 |  Types of \\ (basic) \\ causal relations  | A->B & A->C : A causes B and C. \\ A->B->C : A causes B and B causes C \\ [A+B]->C : A and B together cause C (both A and B are necessary).  \\ A->C, B->C : C can be caused by A; C can be caused by B; A and B are independently sufficient to cause C. |
+|  Past vs. Present  | Causality may take on a slightly different flavor depending whether we are talking about past events versus general rules of the world. For instance, for a particular accident C, the causal analysis may indicate [A+B]->C, whereas in other instances the A->C, B->C relation might be relevant.    |
 |  Time & Causation  | The temporal relation between cause and effect is strict on time: Effects cannot happen before causes.   |