Although Hume seems to suppose that natural processes occur in a deterministic way, his conception of causality prohibits us from knowing them as deterministic. The reason is that for him the idea of a necessary connection between events is purely psychological. In our analysis of this question, we argue that: a) in his main references about causality, Hume does not assume a strong ontological commitment with determinism; b) certain parts of his texts suggest that indeterminism is non eliminable, in the knowledge of nature; and c) his causal conception of freedom supposes indeterminism in natural processes, and not in our knowledge of them only.
Indeterminism; causality; freedom; necessity; chance