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-rw-r--r--src/algebra/strap/PI.lsp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/algebra/strap/PI.lsp b/src/algebra/strap/PI.lsp
index 000a27c9..fcf15cb5 100644
--- a/src/algebra/strap/PI.lsp
+++ b/src/algebra/strap/PI.lsp
@@ -21,6 +21,7 @@
((NOT #0#) (HREM |$ConstructorCache| '|PositiveInteger|)))))))))
(DEFUN |PositiveInteger;| ()
+ (DECLARE (SPECIAL |$ConstructorCache|))
(LET ((|dv$| (LIST '|PositiveInteger|)) ($ (|newShell| 16))
(|pv$| (|buildPredVector| 0 0 NIL)))
(DECLARE (SPECIAL |$ConstructorCache|))