We begin with listing various sets of numbers that are important in mathematical analysis.

or N |
The natural numbers |

or Z |
The integers |

or Q |
The rational numbers |

or R |
The real numbers |

or C |
The complex numbers |

For all | |

Exists/There Exists | |

Subset, Proper Subset | |

Superset, Proper Superset | |

Belongs to | |

Set Subtraction | |

Union | |

Intersection | |

Absolute value | |

Supremum/Least Upper Bound | |

Infimum/Greatest Lower Bound | |

Empty Set |

Alpha | |

Beta | |

Gamma | |

Delta | |

Epsilon | |

Zeta | |

Eta | |

Theta | |

Iota | |

Kappa | |

Lambda | |

Mu | |

Nu | |

Xi | |

Omicron | |

Pi | |

Rho | |

Sigma | |

Tau | |

Upsilon | |

Phi | |

Chi | |

Psi | |

Omega |