hahahahaaha when people who clearly have never
when people who clearly have never taken an advanced logic class or done any advanced studies in logic
tell me i haven’t done anything to show that there is more than one valid logical system….
i literally have about 5 or 6 different books covering about 40+ different systems of logic. all with soundness and completeness theorems.
I could probably name about 20 or so different systems of logic just by memory.