🌐EnglishEnglishDeutschEspañolFrançaisNederlandsالعربيةفارسی日本語EntityQ7082954· pop 6· linked from 13 articlesOlaf HelmerGerman logician (1910–2011)ConnectionsBerlinEntitylogicEntityCategories1910 births1976 deaths20th-century German male writers20th-century German philosophersEmigrants from Nazi Germany to the United StatesGerman emigrants to the United KingdomGerman logiciansHumboldt University of Berlin alumniRAND Corporation peopleWriters from Berlin