As humans, we created mathematics That depends on whether we are talking about mathematics, the method of rigorous notation or, mathematics, the inquiry into q

As humans, we created mathematics That depends on whether we are talking about mathematics, the method of rigorous notation or, mathematics, the inquiry into quantities without reference to quantities of what (i.e. numbers). We created the former but discovered the latter. I'm neither mathematician nor philosopher, but there seem to be some a priori truths in mathematics (I hope I'm using that term correctly) which are not defined or created by us: the ratio between a circle's circumference and diameter (Pi), the distribution of prime numbers, etc. If you are bugged by where those come from, then I don't think you're alone!