code: public function apply(Scope $scope, GenericList $operands) {
      	if (count($operands) == 0) throw new \BadFunctionCallException("And: No parameters found.");
      	
          foreach ($operands as $expr) {
              if (!$value = $expr->evaluate($scope)) return $value;
          }
  
          return $value;
      }
docs: Applies a logical AND to all operands
  Usage: (and true true) (and true true false)
  Returns: boolean
  (non-PHPdoc)
  @see \eMacros\Applicable::apply()