diff options
Diffstat (limited to 'src/algebra/strap/ORDRING.lsp')
| -rw-r--r-- | src/algebra/strap/ORDRING.lsp | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/algebra/strap/ORDRING.lsp b/src/algebra/strap/ORDRING.lsp new file mode 100644 index 00000000..9d3e60c9 --- /dev/null +++ b/src/algebra/strap/ORDRING.lsp @@ -0,0 +1,26 @@ + +(/VERSIONCHECK 2) + +(DEFPARAMETER |OrderedRing;AL| 'NIL) + +(DEFUN |OrderedRing| () + (LET (#:G1393) + (COND + (|OrderedRing;AL|) + (T (SETQ |OrderedRing;AL| (|OrderedRing;|)))))) + +(DEFUN |OrderedRing;| () + (PROG (#0=#:G1391) + (RETURN + (PROG1 (LETT #0# + (|Join| (|OrderedAbelianGroup|) (|Ring|) (|Monoid|) + (|mkCategory| '|domain| + '(((|positive?| ((|Boolean|) $)) T) + ((|negative?| ((|Boolean|) $)) T) + ((|sign| ((|Integer|) $)) T) + ((|abs| ($ $)) T)) + NIL '((|Integer|) (|Boolean|)) NIL)) + |OrderedRing|) + (SETELT #0# 0 '(|OrderedRing|)))))) + +(MAKEPROP '|OrderedRing| 'NILADIC T) |