# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/stephen-cole-kleene
# Generated: 2026-08-14T13:33:42.254Z

schema: https://schema.org/Person
url: "https://fame.am/person/stephen-cole-kleene"
name: "Stephen Cole Kleene"
slug: "stephen-cole-kleene"
description: "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. He also invented regular expressions in 1951 to describe McCulloch-Pitts neural networks, and made significant contributions to the foundations of mathematical intuitionism."
tagline: "American mathematician and theoretical computer scientist (1909–1994)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Stephen_Cole_Kleene.jpg?width=1200"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
category:
  name: "Academics"
  slug: "academics"
profileType:
  name: "Academic"
  slug: "academic"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1909-01-05"
deathDate: "1994-01-25"
livingStatus: "DECEASED"
scores:
  popularity:           51.82
  momentum:             0
  historical:           21.086904
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
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    title: "Wikiquote"
    type:  "WEBSITE"
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    title: "Stephen Cole Kleene"
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    title: "ستيفين كولى كلينى"
    type:  "WIKIPEDIA"
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    title: "Stephen Cole Kleene"
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    title: "Stephen Cole Kleene"
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    title: "Stephen Kleene"
    type:  "WIKIPEDIA"
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    title: "Stephen Kleene"
    type:  "WIKIPEDIA"
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    title: "Ստիվեն Կոուլ Կլինի"
    type:  "WIKIPEDIA"
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    type:  "WIKIPEDIA"
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    title: "스티븐 클레이니"
    type:  "WIKIPEDIA"
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    title: "Stephen Cole Kleene"
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    title: "Stephen Cole Kleene"
    type:  "WIKIPEDIA"
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    title: "Stephen Cole Kleene"
    type:  "WIKIPEDIA"
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    title: "Stephen Kleene"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q335148"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump