Question: Bug in testing functions?

Obviously, that  f:=x->x^3  is the same function as  g:=t->t^3 . But

f:= x-> x^3;  g:= t-> t^3;

is(f=g);

 

Worse yet

f:= x-> x^3;  g:= x-> x^3;

is(f=g);

Please Wait...