diff options
Diffstat (limited to 'src/algebra/strap/DIFRING.lsp')
| -rw-r--r-- | src/algebra/strap/DIFRING.lsp | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/src/algebra/strap/DIFRING.lsp b/src/algebra/strap/DIFRING.lsp index d3d403d7..c19b4ed8 100644 --- a/src/algebra/strap/DIFRING.lsp +++ b/src/algebra/strap/DIFRING.lsp @@ -4,25 +4,21 @@ (DEFPARAMETER |DifferentialRing;AL| 'NIL) (DEFUN |DifferentialRing;| () - (PROG (#0=#:G1396) - (RETURN - (PROG1 (LETT #0# - (|Join| (|Ring|) - (|mkCategory| '|domain| - '(((|differentiate| ($ $)) T) - ((D ($ $)) T) - ((|differentiate| - ($ $ (|NonNegativeInteger|))) - T) - ((D ($ $ (|NonNegativeInteger|))) T)) - NIL '((|NonNegativeInteger|)) NIL)) - |DifferentialRing|) - (|setShellEntry| #0# 0 '(|DifferentialRing|)))))) + (LET ((#0=#:G1396 + (|Join| (|Ring|) + (|mkCategory| '|domain| + '(((|differentiate| ($ $)) T) ((D ($ $)) T) + ((|differentiate| + ($ $ (|NonNegativeInteger|))) + T) + ((D ($ $ (|NonNegativeInteger|))) T)) + NIL '((|NonNegativeInteger|)) NIL)))) + (|setShellEntry| #0# 0 '(|DifferentialRing|)) + #0#)) (DEFUN |DifferentialRing| () - (LET () - (COND - (|DifferentialRing;AL|) - (T (SETQ |DifferentialRing;AL| (|DifferentialRing;|)))))) + (COND + (|DifferentialRing;AL|) + (T (SETQ |DifferentialRing;AL| (|DifferentialRing;|))))) (MAKEPROP '|DifferentialRing| 'NILADIC T) |