# Wayneb's entries Page #5

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

There existsThere is at least one value of x for which f(x) is true. | added 7 years ago | |

FalseThis symbol represents the boolean value "false". | added 7 years ago | |

TrueThis symbol represents the boolean value "true". | added 7 years ago | |

orThe statement "A or B" is true if A or B is true | added 7 years ago | |

andThe statement A & B is true if both A is true and B is true. Otherwise the statement is false. | added 7 years ago | |

negation (not)Negates a logical value, i.e., ! true = false and ! false = true. | added 7 years ago | |

EquivalenceEquivalence is being equivalent or interchangeable. The relationship indicates that both sides are either both true or both false. | added 7 years ago | |

xor (exclusive or)The result of A xor B is true if A is True or B is True but not both True. | added 7 years ago | |

Logical Implication (Implies)The statement on the left side of the symbol implies the statement on the right side. Can also be read as If, Then, i.e., if "statement on left side", then "statement on right side". | added 7 years ago |