MONITORFLAG : FLAGMONITORFLAG is a flag or parameter.
The monitor is switched on if this flag is T and off if it is NIL.
This flag is set by the command MONITOR, and unset by the command NOMONITOR
(and may of course also be set manually).
MONITORFLAG takes values of type BOOLEAN.
It belongs to subjects MATING-SEARCH .
Its default value is NIL
Its current value is NIL.
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