ðɛɹ ɪz ɐn ˈaɪsəmˌoːɹfɪzəm bᵻtwˌiːn ðɪ ˈældʒᵻbɹə ʌv sˈɛts ænd ðə bˈuːliən ˈældʒᵻbɹə, ðæt ˈɪz, ðeɪ hæv ðə sˈeɪm stɹˈʌktʃɚ.
There is an isomorphism between the algebra of sets and the Boolean algebra, that is, they have the same structure.