SymmetryBook: Group exercise: evaluation at refl reverses multiplication, so it is not a homomorphism
Reported · info · Specification gap
The last claim of Exercise 5.6.4 is off by an inverse: with the book's composition order, evaluation at refl reverses multiplication. For non-abelian groups the map is not a homomorphism.
Found: ; reported: ; status since: . Reporter: Mike Murunov