help:boolean_syntax
When searching by boolean, there are several values which can be used for either true or false.
h5. Truthy
* true
* t
* yes
* y
* 1
h5. Falsy
* false
* f
* no
* n
* 0
h5. Caseness
All boolean values are case insensitive.
h4. See also
* Help:API