Gödel logic is named after a mathematician with what nationality?
Gödel logic In mathematical logic, a first-order Gödel logic is a member of a family of finite- or infinite-valued logics in which the sets of truth values "V" are closed subsets of the interval [0,1] containing both 0 and 1. Different such sets "V" in general determine different Gödel logics. The concept is named after Kurt Gödel.
Frege's theorem In metalogic and metamathematics, Frege's theorem is a metatheorem that states that the Peano axioms of arithmetic can be derived in second-order logic from Hume's principle. It was first proven, informally, by Gottlob Frege in his "Die Grundlagen der Arithmetik" ("The Foundations of Arithmetic"), published in 1884, and proven more formally in his "Grundgesetze der Arithmetik" ("The Basic Laws of Arithmetic"), published in two volumes, in 1893 and 1903. The theorem was re-discovered by Crispin Wright in the early 1980s and has since been the focus of significant work. It is at the core of the philosophy of mathematics known as neo-logicism.