Remark On the Antithesis Against this proposition that matter is infinitely divisible, for which the ground of proof is merely mathematical, objections have been put for ward by monadists, who already lay themselves open to suspicion by the fact that they would not allow even the clearest mathematical proofs to count as insights into the constitution of space, insofar as it is in fact the formal condition of the possibility of all matter, but would rather re gard these proofs only as inferences from abstract but arbitraryd con cepts which could not be relatede to real things.