Géza Fodor (mathematician)
Encyclopedia
Géza Fodor was a Hungarian mathematician
, working in set theory
. He proved Fodor's lemma
on stationary set
s, one of the most important, and most used results in set theory. He was a professor at the Bolyai Institute of Mathematics at the Szeged University. He was vice-president, then president of the Szeged University. He was elected a corresponding member of the Hungarian Academy of Sciences
.
Mathematician
A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....
, working in set theory
Set theory
Set theory is the branch of mathematics that studies sets, which are collections of objects. Although any type of object can be collected into a set, set theory is applied most often to objects that are relevant to mathematics...
. He proved Fodor's lemma
Fodor's lemma
In mathematics, particularly in set theory, Fodor's lemma states the following:If \kappa is a regular, uncountable cardinal, S is a stationary subset of \kappa, and f:S\rightarrow\kappa is regressive In mathematics, particularly in set theory, Fodor's lemma states the following:If \kappa is a...
on stationary set
Stationary set
In mathematics, particularly in set theory and model theory, there are at least three notions of stationary set:-Classical notion:If \kappa \, is a cardinal of uncountable cofinality, S \subseteq \kappa \,, and S \, intersects every club set in \kappa \,, then S \, is called a stationary set....
s, one of the most important, and most used results in set theory. He was a professor at the Bolyai Institute of Mathematics at the Szeged University. He was vice-president, then president of the Szeged University. He was elected a corresponding member of the Hungarian Academy of Sciences
Hungarian Academy of Sciences
The Hungarian Academy of Sciences is the most important and prestigious learned society of Hungary. Its seat is at the bank of the Danube in Budapest.-History:...
.