Petr Hájek

Czech logician and mathematician (1940–2016)
Person human Q7178527
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Petr Hájek

Summary

Petr Hájek is a human[1]. Born in Prague[2], he… he was born on +1940-02-06T00:00:00Z[3]. He passed away in Prague[4]. He died on +2016-12-26T00:00:00Z[5]. He worked as a mathematician[6], university teacher[7], and organist[8]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (11 views/month, #7,291 of 1,000,298).[9]

Key Facts

  • Petr Hájek's place of birth was Prague[2].
  • Petr Hájek passed away in Prague[4].
  • Petr Hájek was born on +1940-02-06T00:00:00Z[3].
  • Petr Hájek died on +2016-12-26T00:00:00Z[5].
  • A child of Petr Hájek was Jonáš Hájek[10].
  • Petr Hájek held citizenship in Czechoslovakia[11].
  • Petr Hájek held citizenship in Czech Republic[12].
  • Petr Hájek's professions included mathematician[6].
  • Petr Hájek worked as a university teacher[7].
  • Petr Hájek worked as an organist[8].
  • Petr Hájek's field of work was mathematical logic[13].
  • Petr Hájek's field of work was set theory[14].
  • Petr Hájek's field of work was fuzzy logic[15].
  • Petr Hájek's field of work was organ performance[16].
  • Petr Hájek's field of work was arithmetic[17].
  • Petr Hájek's field of work was artificial intelligence[18].
  • Petr Hájek held the position of organist[19].
  • Petr Hájek held the position of director[20].
  • Among Petr Hájek's employers was Czech Technical University in Prague[21].
  • Petr Hájek's education included a stint at Faculty of Mathematics and Physics, Charles University[22].
  • Petr Hájek's education included a stint at Music and Dance Faculty of the Academy of Performing Arts in Prague[23].
  • Petr Hájek's doctoral advisor was Petr Vopěnka[24].
  • Petr Hájek's doctoral advisor was Karel Čulík[25].
  • Petr Hájek received the Czech Medal of Merit[26].
  • Petr Hájek received the honorary doctorate[27].

Body

Origins and Family

Born in Prague[2], Petr Hájek… he was born on +1940-02-06T00:00:00Z[3].

Education

Educated at Faculty of Mathematics and Physics, Charles University[22], a faculty[28], in Czech Republic[29], founded in 1952[30], headquartered in Prague[31] and Music and Dance Faculty of the Academy of Performing Arts in Prague[23], a faculty of music[32], in Czech Republic[33], founded in 1945[34], headquartered in Prague[35]. Doctoral advisors include Petr Vopěnka[24], a mathematician[36], 1935–2015[37], of Czech Republic[38], awarded the Czech Medal of Merit[39], specialised in set theory[40] and Karel Čulík[25], a mathematician[41], 1926–2002[42], of Czechoslovakia[43], specialised in mathematics[44]. Academic degrees include docent[45] and professor[46].

Career and Affiliations

Recorded occupations include mathematician[6], university teacher[7], and organist[8]. Fields of work include mathematical logic[13], a branch of mathematics[47]; set theory[14], a branch of mathematics[48]; fuzzy logic[15]; organ performance[16]; arithmetic[17], a branch of mathematics[49]; and artificial intelligence[18], a type of technology[50]. Among Petr Hájek's employers was Czech Technical University in Prague[21]. Positions held include organist[19], a musical profession[51] and director[20], a profession[52]. Doctoral students include Vitezslav Svejdar[53]; Zuzana Haniková[54], b. 1974[55]; Petr Cintula[56], a mathematician[57], b. 1978[58]; Jan Rauch[59]; Jiří Ivánek[60]; and Libor Behounek[61], a logician[62], of Czech Republic[63].

Recognition

Awards received include Czech Medal of Merit[26], a medallion[64], in Czech Republic[65], founded in 1990[66] and honorary doctorate[27], a title of honor[67].

Personal Life

A child of Petr Hájek was Jonáš Hájek[10]. His religion is recorded as Evangelical Church of Czech Brethren[68].

Death and Burial

Petr Hájek died on +2016-12-26T00:00:00Z[5]. He died in Prague[4].

Why It Matters

Petr Hájek ranks in the top 0.73% of human entities by monthly Wikipedia readership (11 views/month, #7,291 of 1,000,298).[9] He is known by 5 alternative names across languages and contexts.[69]

FAQs

Where was Petr Hájek born?

Born in Prague[2], Petr Hájek…

Where did Petr Hájek die?

Petr Hájek died in Prague[4].

What did Petr Hájek do for work?

Petr Hájek worked as mathematician[6], university teacher[7], and organist[8].

Where did Petr Hájek go to school?

Petr Hájek was educated at Faculty of Mathematics and Physics, Charles University[22] and Music and Dance Faculty of the Academy of Performing Arts in Prague[23].

What awards did Petr Hájek receive?

Honors received include Czech Medal of Merit[26] and honorary doctorate[27].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] . Czech National Authority Database. Retrieved . svazky.cz. Provenance: wikidata.org.
  2. [4] . A small dictionary of Czech non-Catholic religious figures of the 20th and 21st centuries. wikidata.org.
  3. [11] . Records of persons of interest. svazky.cz. Provenance: wikidata.org.
  4. [12] . wikidata.org.
  5. [19] . A small dictionary of Czech non-Catholic religious figures of the 20th and 21st centuries. wikidata.org.
  6. [20] . A small dictionary of Czech non-Catholic religious figures of the 20th and 21st centuries. wikidata.org.
  7. [10] . A small dictionary of Czech non-Catholic religious figures of the 20th and 21st centuries. wikidata.org.
  8. [22] . wikidata.org.
  9. [23] . wikidata.org.
  10. [13] . Czech National Authority Database. Retrieved . wikidata.org.
  11. [14] . Czech National Authority Database. Retrieved . wikidata.org.
  12. [15] . Czech National Authority Database. Retrieved . wikidata.org.
  13. [16] . Czech National Authority Database. Retrieved . wikidata.org.
  14. [17] . Czech National Authority Database. Retrieved . wikidata.org.
  15. [18] . Czech National Authority Database. Retrieved . wikidata.org.
  16. [6] . Czech National Authority Database. Retrieved . wikidata.org.
  17. [7] . wikidata.org.
  18. [8] . Czech National Authority Database. Retrieved . wikidata.org.
  19. [21] . wikidata.org.
  20. [68] . A small dictionary of Czech non-Catholic religious figures of the 20th and 21st centuries. wikidata.org.
  21. [26] . wikidata.org.
  22. [27] . A small dictionary of Czech non-Catholic religious figures of the 20th and 21st centuries. wikidata.org.
  23. [24] . Mathematics Genealogy Project. wikidata.org.
  24. [25] . Mathematics Genealogy Project. wikidata.org.
  25. [53] . Mathematics Genealogy Project. wikidata.org.
  26. [54] . Mathematics Genealogy Project. wikidata.org.
  27. [56] . Mathematics Genealogy Project. wikidata.org.
  28. [59] . Mathematics Genealogy Project. wikidata.org.
  29. [60] . Mathematics Genealogy Project. wikidata.org.
  30. [61] . Mathematics Genealogy Project. wikidata.org.
  31. [45] . A small dictionary of Czech non-Catholic religious figures of the 20th and 21st centuries. wikidata.org.
  32. [46] . A small dictionary of Czech non-Catholic religious figures of the 20th and 21st centuries. wikidata.org.
  33. [3] . A small dictionary of Czech non-Catholic religious figures of the 20th and 21st centuries. Retrieved . svazky.cz. Provenance: wikidata.org.
  34. [5] . A small dictionary of Czech non-Catholic religious figures of the 20th and 21st centuries. wikidata.org.

Inline context (facts about related entities)

  1. [51] . Wikidata. wikidata.org. → on this site
  2. [52] . Wikidata. wikidata.org. → on this site
  3. [28] . Wikidata. wikidata.org. → on this site
  4. [29] . Wikidata. wikidata.org. → on this site
  5. [30] . Wikidata. wikidata.org. → on this site
  6. [31] . Wikidata. wikidata.org. → on this site
  7. [32] . Wikidata. wikidata.org. → on this site
  8. [33] . Wikidata. wikidata.org. → on this site
  9. [34] . Wikidata. wikidata.org. → on this site
  10. [35] . Wikidata. wikidata.org. → on this site
  11. [47] . Wikidata. wikidata.org. → on this site
  12. [48] . Wikidata. wikidata.org. → on this site
  13. [49] . Wikidata. wikidata.org. → on this site
  14. [50] . Wikidata. wikidata.org. → on this site
  15. [64] . Wikidata. wikidata.org. → on this site
  16. [65] . Wikidata. wikidata.org. → on this site
  17. [66] . Wikidata. wikidata.org. → on this site
  18. [67] . Wikidata. wikidata.org. → on this site
  19. [36] . Wikidata. wikidata.org. → on this site
  20. [37] . Wikidata. wikidata.org. → on this site
  21. [38] . Wikidata. wikidata.org. → on this site
  22. [39] . Wikidata. wikidata.org. → on this site
  23. [40] . Wikidata. wikidata.org. → on this site
  24. [41] . Wikidata. wikidata.org. → on this site
  25. [42] . Wikidata. wikidata.org. → on this site
  26. [43] . Wikidata. wikidata.org. → on this site
  27. [44] . Wikidata. wikidata.org. → on this site
  28. [55] . Wikidata. wikidata.org. → on this site
  29. [57] . Wikidata. wikidata.org. → on this site
  30. [58] . Wikidata. wikidata.org. → on this site
  31. [62] . Wikidata. wikidata.org. → on this site
  32. [63] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [9] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [69] . Wikidata aliases. wikidata.org.

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Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Petr Hájek. Retrieved March 9, 2026, from https://4ort.xyz/entity/petr-hajek
MLA “Petr Hájek.” 4ort.xyz Knowledge Graph, 4ort.xyz, 9 Mar. 2026, https://4ort.xyz/entity/petr-hajek.
BibTeX @misc{4ortxyz_petr-hajek_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Petr Hájek}}, year = {2026}, url = {https://4ort.xyz/entity/petr-hajek}, note = {Accessed: 2026-03-09}}
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