A type that has two values: true and false.
Logical operators and, or, not, xor are defined
on the type. Note that and and or operators
are short-circuiting: if the second operand
can't affect the value of the result, it's not
evaluated, as is the case when the first operand to and is false.
Equivalent to Java's boolean type.
enum boolean
Declaration: boolean
Announcements: boolean
Use: predicate / relation / collection / collection / list / set / set / dictionary / operators / operators / operators / operators / operators / operators / operators / operators / operators / operators / operators / operators / operators / operators / operators / operators / pattern / character handler / character handler / character handler / character handler / character handler / resource identifier / graph / empty / empty / empty / empty / base readonly list / base readonly list / base readonly list / base readonly list / base range / base range / base range / base string / base string / base string / base string / utilities / base list dictionary / base list dictionary / base list dictionary / base hash dictionary / base hash dictionary / base hash dictionary / base hash dictionary / base hash set / base hash set / base hash set / base hash set / hash set / one pattern / one pattern / one pattern / singleton pattern / predicate pattern / predicate pattern / predicate pattern / base repeat element / base repeat element / base repeat element / base repeat element / repeat element / repeat element / repeat element / repeat element / repeat element / repeat element / sequence pattern / sequence pattern / sequence pattern / procedure matcher / procedure matcher / option pattern / option pattern / option pattern / repeat pattern / repeat pattern / repeat pattern / repeat pattern / repeat matcher / list pattern / list pattern / test singleton pattern / test predicate pattern / test predicate pattern / test repeat element / test repeat element / test sequence pattern / test sequence pattern / test sequence pattern / test sequence pattern / test procedure matcher / test procedure matcher / test sequence matcher / test sequence matcher / test sequence matcher / test sequence matcher / test option pattern / test option pattern / test option pattern / test option pattern / test repeat pattern / test repeat pattern / test repeat pattern / test repeat pattern / test repeat pattern / test option matcher / test option matcher / test option matcher / test option matcher / test repeat matcher / test repeat matcher / test repeat matcher / test repeat matcher / test repeat matcher / test list pattern / text formatter / markup formatter / markup formatter / markup grammar / markup grammar / markup grammar / markup grammar / markup grammar / markup grammar / markup grammar / markup grammar / markup grammar / text utilities / text utilities / test markup grammar / test markup grammar / appender / resource store / resource store / resource store / base resource catalog / base resource store / base resource store / base resource store / base resource store / base resource store / base resource identifier / test resolver / test resolver / test resolver / base graph / flags utilities / test flags / json parser / json parser / json printer / json printer / test json parser / test json parser / test json parser / test json parser
true
false