Example image of eyePlorer eyePlorer map for 'Preintuitionism': Philosophy of mathematics Bertrand Russell David Hilbert Ernst Zermelo Georg Cantor Giuseppe Peano Henri Lebesgue Henri Poincaré Louis Couturat Luitzen Egbertus Jan Brouwer Richard Dedekind University of Cambridge Émile Borel Peano axioms Mathematical induction Infinity Natural number Begging the question Logic Analytic-synthetic distinction Intuitionism Logicism Knowledge Language Law of excluded middle Temporal logic Rigour Hermann Weyl Leopold Kronecker Constructive proof Existence theorem Glossary of philosophy