- If an action has an intention, that intention is always a part of the full rational explanation of the action.
- Only facts that are identical with or grounded in the agent's reasons are found in a rational explanation of an action.
- Therefore, the intentions in an action are identical with or grounded in the agent's reasons for the action. ("The Grounding Claim")
The Grounding Claim is very abstract, but it has a concrete and controversial consequence:
- It is possible to have two agents who differ in the foreseen consequences of an action but who do not differ in intentions.
- Foresight is not the same as intention.
The challenge for a theory of intention, then, is to figure out in what way an agent's intentions are grounded in (or identical with) her reasons—how to read her intentions off from her reasons.
I don't know how to do that.