i) If materialism is true all of reality reduces to material...

ii) Material objects reduce to the mathematical notes that fundamentally describe their operation and nature qua physics.
∴ If materialism is true reality reduces to mathematicals.
Moreover:
ii) If X is abstracted from Y, X is not identical to Y.
∴ Mathematicals are not identical to sense data.
ii) But mathematicals are not sensible bodies as they are abstracted:
Ergo, materialism is false on pain of contradiction.