Pythagorean cosmology provided the conceptual leap toward the Copernican hypothesis.

Evidence

To conceive of the earth, not as the centre of the universe, but as one among the planets, not as eternally fixed, but as wandering through space, showed an extraordinary emancipation from anthropocentric thinking. When once this jolt had been given to men’s natural picture of the universe, it was not so very difficult to be led by scientific arguments to a more accurate theory. — Bertrand Russell, History of Western Philosophy, 900

Categorization

• XREF: XREF names what this plausibly connects to: The historical evolution of heliocentrism before Copernicus. — connects to: Demonstrative deductive mathematics originated with Pythagoras and mysticism — Bertrand Russell, History of Western Philosophy, 177; Mathematics spans from before Pythagoras to beyond Einstein — G. H. Hardy, A Mathematician’s Apology, 154; Pythagorean whole-number ratios led to the doctrine of the music of the spheres (+1 more)
• corroborated: 2 independent passages support this claim — Bertrand Russell, History of Western Philosophy, 900

Broader Connections

• Demonstrative deductive mathematics originated with Pythagoras and mysticism #expands (0.55) — Bertrand Russell, History of Western Philosophy, 177