Disjunction
From Encyclopedia of Mathematics
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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
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