Or
Revision as of 22:25, 10 September 2022 by Adám Brudzewsky (talk  contribs) (Text replacement  "<source" to "<syntaxhighlight")
∨

Or (∨
) is a dyadic scalar boolean function which tests if at least one of the two arguments is true: it returns 1 if at least one side is 1 and 0 if both are 0. It represents the logical disjunction in Boolean logic. In many APLs, Or is a special case of the GCD function.
∨ 
0 
1


0

0 
1

1

1 
1

Examples
The following shows all possible combinations of inputs as a Boolean function.
0 0 1 1 ∨ 0 1 0 1 0 1 1 1
When combined with Reduce, Or can be used to test if some value in a Boolean vector is true.
∨/ 0 0 1 0 1 1 ∨/ 0 0 0 0 0 0
See also
External links
Documentation
 Dyalog
 APLX
 J Dictionary, NuVoc
 BQN