numbers
complex - see
Extra - Sets and mappings - Important sets of numbers
integers - see
Extra - Sets and mappings - Important sets of numbers
integers, countable - see
Extra - Sets and mappings - Mappings
natural - see
Extra - Sets and mappings - Important sets of numbers
negative - see
Extra - Sets and mappings - Important sets of numbers
positive - see
Extra - Sets and mappings - Important sets of numbers
rational - see
Extra - Sets and mappings - Important sets of numbers
rational numbers, countable - see
Extra - Sets and mappings - Mappings
real - see
Extra - Sets and mappings - Important sets of numbers
real numbers, extended - see
Functions - Theory - Real numbers - Intervals and neighborhoods
real numbers, uncountable - see
Extra - Sets and mappings - Mappings