When two elements are necessarily united in one concept, they must be connected as reason and consequence, and this either so that their unity is considered as analytical (logical connection), or as synthetical (real connection) the former following the law of identity, the latter that of causality.
Adigai batean halabeharrez lotzen diren bi determinazio oinarri eta ondorio gisa elkarlotzen dira, eta gainera halako moldez non batasun hori analitiko bezala (elkarlotura logikoa) ikusten baita edo sintetiko bezala (lotura erreala), hura identitatearen legearen arabera, beste hori kausalitatearen legearen arabera.