Temporal and

{bool, tbool} & {bool, tbool}: tbool

SELECT tbool '[true@2012-01-03, true@2012-01-05)' &
tbool '[false@2012-01-03, false@2012-01-05)';
-- "[f@2012-01-03, f@2012-01-05)"
SELECT tbool '[true@2012-01-03, true@2012-01-05)' &
tbool '{[false@2012-01-03, false@2012-01-04),
[true@2012-01-04, true@2012-01-05)}';
-- "{[f@2012-01-03, t@2012-01-04, t@2012-01-05)}"
				

Temporal or

{bool, tbool} | {bool, tbool}: tbool

SELECT tbool '[true@2012-01-03, true@2012-01-05)' |
tbool '[false@2012-01-03, false@2012-01-05)';
-- "[t@2012-01-03, t@2012-01-05)"
				

Temporal not

~ tbool: tbool

SELECT ~ tbool '[true@2012-01-03, true@2012-01-05)';
-- "[f@2012-01-03, f@2012-01-05)"