Complex sentence: The question of whether there is a "transcendent" mathematics independent of human thought is a meaningless question, like asking if colors are transcendent of human thought--colors are only varying wavelengths of light, it is our interpretation of physical stimuli that make them colors.
Split into simpler sentences: The question of whether there is a "transcendent" mathematics independent of human thought is a meaningless question. That is like asking if colors are transcendent of human thought--colors are only varying wavelengths of light, it is our interpretation of physical stimuli that make them colors.