If jeremy's action is viewed based in piaget's theory, he is currently inĀ FormalĀ OperationalĀ Stage in which he based his reaction based on his personal deductive skill and systematic thought.
If this viewed based of Kohlberg's theory, Jeremy's currently inĀ Post-conventionalĀ moralĀ reasoning, in which he formed his personal sense of morality by analyzing the outcome of his actions.