7 ) ▁ ▁The ▁Battle ▁of ▁the ▁Dam ned ▁( Qu ella ▁dann ata ▁p att ug lia ) ▁( 1 9 6 9 ) ▁▁ 3 6 ▁H ours ▁to ▁Hell ▁( 1 9 6 9 ) ▁ ▁E ye ▁of ▁the ▁Spider ▁( 1 9 7 1 ) ▁ ▁So ▁S weet , ▁So ▁Dead ▁( 1 9 7 2 ) ▁ ▁The ▁Secret ▁N ights ▁of ▁Lu cre zia ▁Borg ia ▁( 1 9 8 2 ) ▁ ▁References ▁ ▁External ▁links ▁▁▁▁ ▁Category : 1 9 0 7 ▁birth s ▁Category : 1 9 8 6 ▁death s ▁Category : 2 0 th - century ▁Italian ▁people ▁ ▁Category : Ital ian ▁film ▁direct ors ▁Category : Ital ian ▁male ▁film ▁actors ▁Category : Ital ian ▁male ▁stage ▁actors ▁Category : Ital ian ▁screen writ ers ▁Category : M ale ▁actors ▁from ▁Rome ▁Category : Fil m ▁direct ors ▁from ▁Rome ▁Category : Ital ian ▁male ▁screen writ ers <0x0A> </s> ▁In ▁set ▁theory , ▁Z erm elo – F ra enk el ▁set ▁theory , ▁named ▁after ▁mathemat icians ▁Ernst ▁Z erm elo ▁and ▁Abraham ▁Fra enk el , ▁is ▁an ▁ax iom atic ▁system ▁that ▁was ▁proposed ▁in ▁the ▁early ▁tw enti eth ▁century ▁in ▁order ▁to ▁form ulate ▁a ▁theory ▁of ▁sets ▁free ▁of ▁par ado xes ▁such ▁as ▁Russell ' s ▁par ado x . ▁ ▁Today , ▁Z erm elo – F ra enk el ▁set ▁theory , ▁with ▁the ▁histor ically ▁controvers ial