Relative identity theorists (Geach, Griffin) hold that identity is always under a sortal, so 'Trump-qua-husband' and 'Trump-qua-President' are not distinct objects but the same object under different descriptions.

?Rate how convincing each reason is below to see the overall strength.

No one has weighed in yet. Be the first to share reasons for or against this statement.

Geach, Peter(one of the main philosophers associated with this theory): A 20th-century British philosopher who developed the theory of relative identity and argued that identity always depends on a category or type.
Griffin, David(another philosopher associated with relative identity theory): A process philosopher and theologian who worked with ideas about identity and how things remain the same while changing.
Identity(Adams treats identity statements as a variety of atomic formula rather than a logical truth exempt from existence presuppositions): A relation between an object and itself, expressed as an atomic formula (a=a), subject to the same existence-entailment conditions as other atomic predicates under GSA
Relative identity theory(Associated with Peter Geach): The view that there is no relation of absolute identity; identity is always relative to a kind.

Based on where you are in your exploration