Rationality (epistemic): The collection of techniques[1] that help to obtain the (more) correct model of the world from observations.
Rationality (instrumental): The collection of techniques that help to achieve goals in most environments. This collection includes most of epistemc rationality, because to know in what environment you are is often useful.
Rationality (what people usually mean): The stuff The Sequences and Thinking, Fast and Slow is about. Arguably, the most useful meaning of the three.
Rationality (epistemic): The collection of techniques[1] that help to obtain the (more) correct model of the world from observations.
Rationality (instrumental): The collection of techniques that help to achieve goals in most environments. This collection includes most of epistemc rationality, because to know in what environment you are is often useful.
Rationality (what people usually mean): The stuff The Sequences and Thinking, Fast and Slow is about. Arguably, the most useful meaning of the three.
Or the property of an agent that it uses these techniques. Different types, but isomorphic enough so I propose implicit conversion.