His name is associated to
Suslin's problem, a question relating to
totally ordered sets that was eventually found to be
independent of the standard system of set-theoretic axioms,
ZFC. He contributed greatly to the theory of
analytic sets, sometimes called after him, a kind of a
set of reals that is definable via
trees. In fact, while he was a research student of
Nikolai Luzin (in 1917) he found an error in an argument of
Lebesgue, who believed he had proved that for any
Borel set in \R^2, the projection onto the real axis was also a Borel set.
Publications Suslin only published one paper during his life: a 4-page note. • • • {{citation|last=Souslin|first= M. Ya. ==See also==