Example image of eyePlorer eyePlorer map for 'Meagre set': Descriptive set theory General topology Negligible set Subset Topological space Countable set Sigma-ideal Union (set theory) Baire space Baire space (set theory) Polish space Real number Complement (set theory) Duality (mathematics) Intersection (set theory) Nowhere dense set Dense set Disjoint sets Neighbourhood (mathematics) Interior (topology) Fσ set Gδ set Open set Banach–Mazur game Rational number Baire category theorem Cantor set Continuous function Generic property Luzin set Property of Baire Bernstein set Porous set Residual (mathematics) Cichoń's diagram Set theory of the real line Woodin cardinal Thomae's function Ideal (set theory) Nowhere continuous function Complete Boolean algebra Taylor series Discrete space Open mapping theorem (functional analysis) Meager Liouville number Perfect space Distribution (mathematics) Glossary of topology Derivative