American mathematician, computer scientist, and academic (born 1909)

Stephen Cole Kleene

Stephen Cole Kleene was an American mathematician and logician. One of the students of Alonzo Church, Kleene, along with Rózsa Péter, Alan Turing, Emil Post, and others, is best known as a founder of the branch of mathematical logic known as recursion theory, which subsequently helped to provide the foundations of theoretical computer science. Kleene's work grounds the study of computable functions. A number of mathematical concepts are named after him: Kleene hierarchy, Kleene algebra, the Kleene star, Kleene's recursion theorem and the Kleene fixed-point theorem.

Born

1909

January 5

Died

1994

Era

1900s

Country

—

About

Stephen, in brief

Stephen Cole Kleene was an American mathematician and logician. One of the students of Alonzo Church, Kleene, along with Rózsa Péter, Alan Turing, Emil Post, and others, is best known as a founder of the branch of mathematical logic known as recursion theory, which subsequently helped to provide the foundations of theoretical computer science. Kleene's work grounds the study of computable functions. A number of mathematical concepts are named after him: Kleene hierarchy, Kleene algebra, the Kleene star, Kleene's recursion theorem and the Kleene fixed-point theorem.

Source: Wikipedia · CC BY-SA 4.0

Life timeline

Key dates

1909 Born
1994 Died

Also on January 5

What else happened on this day, through history

1477 Battle of Nancy: Charles the Bold is defeated and killed in a conflict with René II, Duke of Lorraine; Burgundy subsequently becomes part of France.
1675 Battle of Colmar: The French army defeats forces from Austria and Brandenburg.
1757 Louis XV of France survives an assassination attempt by Robert-François Damiens, who becomes the last person to be executed in France by drawing and quartering (the traditional form of capital punishment used for regicides).
1781 American Revolutionary War: Richmond, Virginia, is burned by British naval forces led by former American general Benedict Arnold.

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The world in 1909

When Stephen arrived

april 11 The city of Tel Aviv is founded.
april 13 The 31 March Incident leads to the overthrow of Sultan Abdul Hamid II.
april 14 Muslims in the Ottoman Empire begin a massacre of Armenians in Adana.
april 18 Joan of Arc is beatified in Rome.

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Same-day contemporaries

Also born on January 5

Bob Caruthers 1864–1911 American baseball player and umpire (born 1864) Carolyn McCarthy 1944–2025 American nurse and politician (died 2025) Claude Martin 1735–1800 French-English general and explorer (died 1800) Hosea Williams 1926– American businessman and activist (died 2000) Jean-Baptiste Say 1767–1832 French economist and academic (died 1832) Kristin Cavallari 1987– American television personality Paramahansa Yogananda 1893– Indian-American guru and philosopher (died 1952) Suki Waterhouse 1992– English actress, singer-songwriter, and model Tyler Ulis 1996– American basketball player and coach

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Same-year contemporaries

Also born in 1909

Adam von Trott zu Solz 1909–1944 German lawyer and diplomat (born 1909) Bruce Matthews 1909–1991 Canadian general and businessman (died 1991) Clyde Barrow 1909–1934 American criminal (died 1934) E. Herbert Norman 1909–1957 Canadian historian and diplomat (born 1909) Elisabeth Geleerd 1909–1969 Dutch-American psychoanalyst (died 1969) Elizabeth Enright 1909–1968 American author and illustrator (born 1909) Erik von Kuehnelt-Leddihn 1909– Austrian theorist and author (died 1999) Eugène Ionesco 1909–1994 Romanian-French playwright and critic (born 1909) Evelyn Wood 1909– American author and educator (died 1995)

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Stephen's birthday January 5 Stephen's zodiac Capricorn When Stephen arrived 1909