# Disjunction

From Encyclopedia of Mathematics

The logical operation of formation of the statement "A or B" from two statements $A$ and $B$. In formalized languages the disjunction of two statements $A$ and $B$ is denoted by $A\lor B$. The statements $A$ and $B$ are called the disjunctive terms of the statement $A\lor B$. The meaning of the disjunction can be expressed by the following truth table:

$A$ | $B$ | $A\lor B$ |

$T$ | $T$ | $T$ |

$T$ | $F$ | $T$ |

$F$ | $T$ | $T$ |

$F$ | $F$ | $F$ |

**How to Cite This Entry:**

Disjunction.

*Encyclopedia of Mathematics.*URL: http://encyclopediaofmath.org/index.php?title=Disjunction&oldid=32851

This article was adapted from an original article by V.E. Plisko (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article