# Wayneb's entries Page #4

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Here's the list of symbols submitted by **wayneb**
— There are currently **109** symbols total — keep up the great work!

Natural Numbers Including ZeroRepresents the set of all natural numbers including zero. | added 7 years ago | |

Empty SetRepresents the set that has no items (i.e., the set that is empty). | added 7 years ago | |

Aleph-OneAleph-One represents the cardinality of countable ordinal number sets. | added 7 years ago | |

Aleph-NullAleph-Null represents the infinite cardinality of the set of natural numbers. | added 7 years ago | |

CardinalityIndicates the number of elements in a set. | added 7 years ago | |

Cartesian ProductA x B is the set of all ordered pairs from A and B. | added 7 years ago | |

Ordered PairA set of two elements. | added 7 years ago | |

not element ofIndications that an element is not a member of a set. | added 7 years ago | |

Element ofIndicates set membership. | added 7 years ago | |

Symmetric DifferenceItems that belong to two sets but not the intersection of the two sets. | added 7 years ago | |

ComplementThe complement of a set A is the set that contains all elements that are not in set A. | added 7 years ago | |

EqualityIndicates that two sets have the same members. | added 7 years ago | |

Power SetA power set refers to subsets of A. | added 7 years ago | |

Not SupersetIndicates that a set is not a superset of another set. | added 7 years ago | |

SupersetThe superset has all the items of a set and possibly additional items. | added 7 years ago | |

not subsetIndications that a set is not a subset of another set | added 7 years ago | |

Proper Subset (also called a strict subset)A proper subset is subset that has few elements than the set, i.e., the subset can not be the original set. | added 7 years ago | |

SubsetA subset of a group is a set that contains some or all of the elements of a set. | added 7 years ago | |

UnionThe union of two sets is the set of all objects in both sets. | added 7 years ago | |

IntersectionThe intersection of two sets is the set of objects that belong to both sets. | added 7 years ago | |

setA set is a collection of elements represented as a comma separated list of elements. | added 7 years ago | |

EntailsA |= B if for every A that is true, B is true. | added 7 years ago | |

ProvableMeans a statement is provable | added 7 years ago | |

Is defined asSpecifies the definition of something. | added 7 years ago | |

There exists exactly oneThere is exactly one value of x for which x is true. | added 7 years ago |