Description of Parameters

Note: There is a difference between parameters a, b and parameters c, d, e. The logical connective AND with a variable number of parameters needs a rule for unused parameters. Since an AND operation needs at least two parameters, a and b need to have a Boolean value, so they are not optional. If a or b have no assigned values (no value), they will get the value false. For the optional parameters c to e, an unassigned value is interpreted as the parameter not being used. Unused parameters have to be interpreted as true for the AND operation to return the logically correct result, meaning parameters c to e will be interpreted as true if they have no assigned value. Solution: Make sure that all parameters that should be used have a valid Boolean value (true or false).

Examples