a person in the record
Karl Popper
Austrian-British philosopher of science and social and política e falsificationism and for criticism of Plato, Hegel and Marx as totalitarian opponents of open society1902 to 1994
Wikidata names Karl Bühler and Moritz Schlick as doctoral advisors and lists 2 doctoral students. Linked to Wikidata, Mathematics Genealogy Project, and 6 other registers.

How to read the markscited by a repository's recordstated by Wikidata or indexed by OpenAlexclaimed on an ORCID list, or inferred
Advisors on Wikidata2
From Wikidata, shown separately from the thesis records.
- stated by Wikidata
- stated by Wikidata
Students on Wikidata2
From Wikidata, shown separately from the thesis records.
- stated by Wikidataborn 1922
- stated by Wikidataborn 1924
Taught11
Wikidata's "student of" and "student" statements: a line of training beside the lineage, never a thesis supervision and never counted with one.
- a teacher or mentor, stated by Wikidata: not a thesis supervisionborn 1922
- a teacher or mentor, stated by Wikidata: not a thesis supervisionborn 1922
- a teacher or mentor, stated by Wikidata: not a thesis supervisionborn 1924
- a teacher or mentor, stated by Wikidata: not a thesis supervisionborn 1924
- a teacher or mentor, stated by Wikidata: not a thesis supervisionborn 1927
- a teacher or mentor, stated by Wikidata: not a thesis supervisionborn 1930
- a teacher or mentor, stated by Wikidata: not a thesis supervisionborn 1934
- a teacher or mentor, stated by Wikidata: not a thesis supervisionborn 1939
- a teacher or mentor, stated by Wikidata: not a thesis supervisionborn 1940
- a teacher or mentor, stated by Wikidata: not a thesis supervisionborn 1942
- a teacher or mentor, stated by Wikidata: not a thesis supervisionborn 1948
The line above and below4 steps
The advisors of their advisors, four steps up at most, in the thesis records and on Wikidata, each kind marked; a person in both is listed once.
- 1 step up
stated by WikidataKarl Bühlerstated by WikidataMoritz Schlick
- 2 steps up
stated by WikidataClemens Baeumkerstated by WikidataMax Planck
- 3 steps up
stated by WikidataAlexander von Brill
- 4 steps up
stated by WikidataAlfred Clebsch
Below them, within 3 steps, the record reaches 3 people: 3 stated by Wikidata.
Theses
- stated by Wikidatadoctoral thesis, stated by Wikidata
Education and career7
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- from 1918studied
- until 1928studied
- 1937 to 1945worked
- from 1946
- 1949 to 1969worked
- undatedstudied
- undatedworked