diff options
Diffstat (limited to 'src/algebra/strap/CABMON.lsp')
| -rw-r--r-- | src/algebra/strap/CABMON.lsp | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/algebra/strap/CABMON.lsp b/src/algebra/strap/CABMON.lsp new file mode 100644 index 00000000..d1059b38 --- /dev/null +++ b/src/algebra/strap/CABMON.lsp @@ -0,0 +1,26 @@ + +(/VERSIONCHECK 2) + +(DEFPARAMETER |CancellationAbelianMonoid;AL| 'NIL) + +(DEFUN |CancellationAbelianMonoid| () + (LET (#:G1387) + (COND + (|CancellationAbelianMonoid;AL|) + (T (SETQ |CancellationAbelianMonoid;AL| + (|CancellationAbelianMonoid;|)))))) + +(DEFUN |CancellationAbelianMonoid;| () + (PROG (#0=#:G1385) + (RETURN + (PROG1 (LETT #0# + (|Join| (|AbelianMonoid|) + (|mkCategory| '|domain| + '(((|subtractIfCan| + ((|Union| $ "failed") $ $)) + T)) + NIL 'NIL NIL)) + |CancellationAbelianMonoid|) + (SETELT #0# 0 '(|CancellationAbelianMonoid|)))))) + +(MAKEPROP '|CancellationAbelianMonoid| 'NILADIC T) |