# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/ernst-specker
# Generated: 2026-08-13T05:09:04.113Z

schema: https://schema.org/Person
url: "https://fame.am/person/ernst-specker"
name: "Ernst Specker"
slug: "ernst-specker"
description: "Ernst Paul Specker (11 February 1920, Zürich – 10 December 2011, Zürich) was a Swiss mathematician. Much of his most influential work was on Willard Van Orman Quine's New Foundations, a set theory with a universal set, but he is most famous for the Kochen–Specker theorem in quantum mechanics, showing that certain types of hidden-variable theories are impossible. He also proved the ordinal partition relation ω2 → (ω2, 3)2, thereby solving a problem of Paul Erdős."
tagline: "Swiss mathematician (1920-2011)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/ETH-BIB-Specker%2C_Ernst_(1920-2011)-Portrait-Portr_11148.tif?width=1200"
gender: "male"
country:
  name: "Switzerland"
  isoCode: "CH"
category:
  name: "Academics"
  slug: "academics"
profileType:
  name: "Academic"
  slug: "academic"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1920-02-11"
deathDate: "2011-12-10"
livingStatus: "DECEASED"
scores:
  popularity:           39.99
  momentum:             0
  historical:           8.739885333333334
  currentAttention:     0
  sourceConfidence:     54.99999999999999
  profileCompleteness:  70
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://pt.wikipedia.org/wiki/Ernst_Specker"
    title: "Ernst Specker"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D8%A7%D8%B1%D9%86%D8%B3%D8%AA_%D8%B4%D8%A8%D9%8A%D9%83%D8%B1"
    title: "ارنست شبيكر"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Ernst_Specker"
    title: "Ernst Specker"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Ernst_Specker"
    title: "Ernst Specker"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Ernst_Specker"
    title: "Ernst Specker"
    type:  "WIKIPEDIA"
  - url: "https://eo.wikipedia.org/wiki/Ernst_Specker"
    title: "Ernst Specker"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Ernst_Specker"
    title: "Ernst Specker"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Ernst_Specker"
    title: "Ernst Specker"
    type:  "WIKIPEDIA"
  - url: "https://he.wikipedia.org/wiki/%D7%90%D7%A8%D7%A0%D7%A1%D7%98_%D7%A9%D7%A4%D7%A7%D7%A8"
    title: "ארנסט שפקר"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/Ernst_Specker"
    title: "Ernst Specker"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q117486"
    title: "Wikidata"
    type:  "WIKIDATA"

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