diff options
Diffstat (limited to 'src/algebra/card.spad.pamphlet')
| -rw-r--r-- | src/algebra/card.spad.pamphlet | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/algebra/card.spad.pamphlet b/src/algebra/card.spad.pamphlet index e6ffb393..4ab212af 100644 --- a/src/algebra/card.spad.pamphlet +++ b/src/algebra/card.spad.pamphlet @@ -60,10 +60,10 @@ CardinalNumber: Join(OrderedSet, AbelianMonoid, Monoid, commutative "*" ++ a domain D has \spad{commutative("*")} if it has an operation ++ \spad{"*": (D,D) -> D} which is commutative. - "-": (%,%) -> Union(%,"failed") + -: (%,%) -> Union(%,"failed") ++ \spad{x - y} returns an element z such that \spad{z+y=x} or "failed" ++ if no such element exists. - "**": (%, %) -> % + **: (%, %) -> % ++ \spad{x**y} returns \spad{#(X**Y)} where \spad{X**Y} is defined ++ as \spad{\{g| g:Y->X\}}. |