Synopsis Less than or equal operator on datetime values.
Syntax Exp1 <= Exp2
Exp1 Exp2 Exp1 <= Exp2
datetime datetime bool
Description Yields true if the datetime value of Exp1 is earlier in time than the datetime value of Exp2 or if the values of Exp1 and Exp2 are equal, and false otherwise.
rascal>$2010-07-15 <= $2010-07-15;
                   ^ Parse error here
rascal>$2011-07-15 <= $2010-07-14;
                   ^ Parse error here
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