On: Show HN: Matrix Multiplication with Half the Multi...

[ernesth]

You do not need a different algorithm for each real. Just take the algorithm that proves the statement for rational p. It proves the statement for all reals bigger than p. (hence having as many algorithms as there are rational (countably many) is enough)

[hnfong → ernesth]

Then that’s basically saying there is a O(n^2) algorithm which I dealt with in my first sentence.