inverses¶
-
std::string const &
libsemigroups::fpsemigroup::KnuthBendix
::
inverses
() const¶ Returns the inverses of
this
, or throws an exception if there aren’t any.- Return
A const reference to the inverses, a value of type std::string.
- Complexity
Constant.
- Parameters
(None)
- See
set_inverses() for the meaning of the return value of this function.
- Exceptions
LibsemigroupsException
: if no identity has been defined.