The question was answered a while back by Rahvin:
quote:
Objective reality would be that which exists outside of our own minds, independant of our thoughts or feelings or knowledge or beliefs.
That's objective reality.
The rest of it has been about working out what exists outside of our own minds. The question of whether we are capable of discriminating 100% between subjective concepts and objective entities is an entirely different thing.
Is maths subjective? The parts of maths that exist in our heads...that's subjective. That's why there are maths arguments from time to time. The actual relationships between varying quanta? I suspect they are objectively real but the caveat above applies, of course.