add_rule(std::string const&, std::string const&)¶
-
void
libsemigroups::FpSemigroupInterface
::
add_rule
(std::string const &u, std::string const &v)¶ Add a rule.
- Return
(None)
- Complexity
Constant.
- Parameters
u
: the left-hand side of the rule being added.v
: the right-hand side of the rule being added.
- Exceptions
LibsemigroupsException
: if any of the following apply:started() returns
true
; oru
orv
contains a letter that does not belong to alphabet().