I’m a little confused as to why. 1+1=2 is the result of the application of mathematical axioms. Is the existence of such axioms a deterrent to objectivity?
Law of Excluded middle is also a good moral. it is a good morality of certain forms of Logic.
“This cannot [x] because [y]”
You’re applying morality.
Heuristics. If I had to dispense of rules and standards and was allowed only one to apply to all disciplines, it’s heuristics. But I am a pragmatist at heart.