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-rw-r--r--doc/ref/api-procedures.texi9
1 files changed, 4 insertions, 5 deletions
diff --git a/doc/ref/api-procedures.texi b/doc/ref/api-procedures.texi
index 0e0ad15f2..02d777155 100644
--- a/doc/ref/api-procedures.texi
+++ b/doc/ref/api-procedures.texi
@@ -643,10 +643,8 @@ properties interface.
The first group of procedures in this meta-interface are predicates to
test whether a Scheme object is a procedure, or a special procedure,
-respectively. @code{procedure?} is the most general predicates, it
-returns @code{#t} for any kind of procedure. @code{closure?} does not
-return @code{#t} for primitive procedures, and @code{thunk?} only
-returns @code{#t} for procedures which do not accept any arguments.
+respectively. @code{procedure?} is the most general predicates, it
+returns @code{#t} for any kind of procedure.
@rnindex procedure?
@deffn {Scheme Procedure} procedure? obj
@@ -656,7 +654,8 @@ Return @code{#t} if @var{obj} is a procedure.
@deffn {Scheme Procedure} thunk? obj
@deffnx {C Function} scm_thunk_p (obj)
-Return @code{#t} if @var{obj} is a thunk.
+Return @code{#t} if @var{obj} is a thunk---a procedure that does
+not accept arguments.
@end deffn
@cindex procedure properties