%f or %F Boolean variable for false.

## Syntax

    %f or %F

## Description

`%f` or `%F` are boolean variables which return `false`.

When the condition is not checked, this last returns `false`.

## Example

            a = 4 > 5
            b = 0 == 1
            c = %t & %f
            d = 3 ~= 3

## See also

- %t or %T
- comparison