Maxima Operator
#
Represents the negation of syntactic equality =
.
Note that because of the rules for evaluation of predicate expressions
(in particular because not expr
causes evaluation of expr),
not a = b
is equivalent to is(a # b)
,
instead of a # b
.
Examples:
(%i1) a = b; (%o1) a = b (%i2) is (a = b); (%o2) false (%i3) a # b; (%o3) a # b (%i4) not a = b; (%o4) true (%i5) is (a # b); (%o5) true (%i6) is (not a = b); (%o6) true