 ivo lah (; september 5, 1896 â march 23, 1979) was a slovenian mathematician and actuary, best known for his discovery of the lah numbers in 1955 and for the lah identity. lah was born at Å trukljeva vas, near cerknica, austria-hungary, now in slovenia, and died at ljubljana, yugoslavia, also now in slovenia. ==references==   
1896_births 1979_deaths 20th-century_mathematicians Actuaries Austro-Hungarian_Army_officers Austro-Hungarian_military_personnel_of_World_War_I Faculty_of_Science,_University_of_Zagreb_alumni Sapienza_University_of_Rome_faculty Slovenian_mathematicians University_of_Vienna_alumni University_of_Zagreb_faculty