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Macaulay2
>
The Macaulay2 language
>
operators
>
and
and -- conjunction
Description
t and u
-- returns true if
t
is true and
u
is true.
If
t
is false, then the code in
u
is not evaluated.
See also
or
-- disjunction
not
-- negation
For the programmer
The object
and
is
a
keyword
.
This operator may be used as a binary operator in an expression like
x and y
. The user may install
binary methods
for handling such expressions with code such as
X and Y := (x,y) -> ...
where
X
is the class of
x
and
Y
is the class of
y
.