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-rw-r--r--src/algebra/strap/CHAR.lsp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/algebra/strap/CHAR.lsp b/src/algebra/strap/CHAR.lsp
index f16acad3..6e24716c 100644
--- a/src/algebra/strap/CHAR.lsp
+++ b/src/algebra/strap/CHAR.lsp
@@ -100,8 +100,8 @@
(RETURN
(CODE-CHAR
(PROG1 (LETT #0# (- |n| 1) |CHAR;index;Pi$;4|)
- (|check-subtype| (COND ((< #0# 0) 'NIL) ('T 'T))
- '(|NonNegativeInteger|) #0#))))))
+ (|check-subtype| (NOT (< #0# 0)) '(|NonNegativeInteger|)
+ #0#))))))
(DEFUN |CHAR;lookup;$Pi;5| (|c| $)
(PROG (#0=#:G1404)