Abstract
I propose that an irreducible property of physical space — consistency — is the origin
of logic. I propose that an inconsistent space is inconceivable and that this inconceivability can be
recognized as the force behind logical propositions. The implications of this argument are briefly
explored and then applied to address two paradoxes: Zeno of Elea’s paradox regarding the race
between Achilles and the Tortoise, and Lewis Carroll’s paradox regarding the Tortoise’s conversation
with Achilles after the race. I conclude that Achilles would have won on both accounts, in the race and
the argument, by invoking the consistency of space as the foundation of both movement across space
and logical argument.