A peculiarity in pearl’s logic of interventionist counterfactuals
Journal of Philosophical Logic
Causal model, Counterfactual logic, Counterfactual dependence, terventionism
We examine a formal semantics for counterfactual conditionals due to Judea Pearl, which formalizes the interventionist interpretation of counterfactuals central to the interventionist accounts of causation and explanation. We show that a characteristic principle validated by Pearl’s semantics, known as the principle of reversibility, states a kind of irreversibility: counterfactual dependence (in David Lewis’s sense) between two distinct events is irreversible. Moreover, we show that Pearl’s semantics rules out only mutual counterfactual dependence, not cyclic dependence in general. This, we argue, suggests that Pearl’s logic is either too weak or too strong.
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Zhang, J., Lam, W. Y., & Clercq, R. D. (2013). A peculiarity in pearl’s logic of interventionist counterfactuals. Journal of Philosophical Logic, 42(5), 783-794. doi: 10.1007/s10992-012-9249-z