Also called the Kuratowski lemma, his earlier formulation of Zorn's lemma is called his maximality principle.
This man names a result where the removal of a countable set from the two- sphere results in three congruent subsets A, B, and C that are also congruent to B union C, this man's paradox. With Baker and Campbell, he names a formula that gives Z if Z is equal to the log of e to the X times e to the Y, if X and Y do not commute. Also called the Kuratowski lemma, his earlier formulation of Zorn's lemma is called his maximality principle. A form of convergence also named for Gromov is based in part on the distance between two subsets of a metric space, which is named for him, and another concept named for him may be estimated by Frostman's lemma. FTP, give this namesake of a kind of space separated by the T2 [T-2] condition, where there exists a neighborhood that includes one of two distinct points, as well as a quantity equal to two for the Mandelbrot set.
This man names a result where the removal of a countable set from the two- sphere results in three congruent subsets A, B, and C that are also congruent to B union C, this man's paradox.
Felix {Hausdorff}