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-rw-r--r--src/algebra/strap/ILIST.lsp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/algebra/strap/ILIST.lsp b/src/algebra/strap/ILIST.lsp
index 2a1dfcbc..dd576d32 100644
--- a/src/algebra/strap/ILIST.lsp
+++ b/src/algebra/strap/ILIST.lsp
@@ -302,7 +302,7 @@
|ILIST;latex;$S;23|)
(LETT |x| (QCDR |x|) |ILIST;latex;$S;23|)
(EXIT (COND
- ((NULL (NULL |x|))
+ ((NOT (NULL |x|))
(LETT |s| (STRCONC |s| ", ")
|ILIST;latex;$S;23|)))))
NIL (GO G190) G191 (EXIT NIL))