> I can't imagine a universe where 1 + 1 = 2 is incorrect
I think it really depends on lots of factor, like how their biology works, how their civilization works, how their perception works, what are their goals etc. There could be a civilization where they don't use "logic" (as we know it) as a tool to develop their civilization, maybe they have a form of logic where true can sometimes be false based on mood or state of the world (but of course we won't call that "logic" when we see it)
I think it really depends on lots of factor, like how their biology works, how their civilization works, how their perception works, what are their goals etc. There could be a civilization where they don't use "logic" (as we know it) as a tool to develop their civilization, maybe they have a form of logic where true can sometimes be false based on mood or state of the world (but of course we won't call that "logic" when we see it)