swinburne further states, “a person continues to exist if that person has mental states; but . . . the mere continued existence of the person’s body is neither necessary nor sufficient for the continued existence of the person. yet the continuing existence of a person is the continuing existence of a substance, in the sense of a thing capable of causal interactions [Bold type ADDED]. so mental states must pertain to an immaterial substance [SWINBURNE IS REFERRING TO SUBSTANCE DUALISM, DISTINCT FROM PROPERTY DUALISM.] . . . . MENTAL EVENTS ARE NOT IDENTICal with brain events.”