IN (XX,YY,ZZ) Statement

Why doesn't the following work: MAIN DEFINE str CHAR( 2 ) LET str = "12" IF str IN ( "12", "23", "34" ) THEN DISPLAY "True" END IF END MAIN According to the manual, the expr [ NOT ] IN ({ items | SELECT-statement }) is a boolean expression. And the IF statement requires a boolean. ( Page 2-17 of I-4GL Reference 2, March 1990 Part No. 000-7044 ) Just wondering. Robert Minter |Data Systems Support| \\\\\\_/// Programmer, Software Development | Orange, CA | ( _ _ ) internet: rob@dssmktg.com | Tel: 714.771.0454 | (| ^ |) bangpath: uunet.uu.net!dssmktg!rob| Fax: 714.771.3028 | \\`-'/ I used to not know, now I know I don't know. \\_/