/usr/lib/s9fes/help/programp is in scheme9 2010.11.13-2.
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1 2 3 4 5 6 7 8 | S9 LIB (program? object) ==> boolean
(load-from-library "programp.scm")
Return #T, if OBJECT is a syntactically correct Scheme program.
This program does not implement all of R4RS. Caveat utilitor.
(program? '(let ((x 1)) (cons x x))) ==> #t
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