MathDB
Miklos Schweitzer 1966_7

Source:

September 29, 2008
functionsearchreal analysisreal analysis unsolved

Problem Statement

Does there exist a function f(x,y) f(x,y) of two real variables that takes natural numbers as its values and for which f(x,y)\equal{}f(y,z) implies x\equal{}y\equal{}z? A. Hajnal