REGARDING THE “FALSE CONDITIONAL PREMISE” Cover Image

APIE "KLAIDINGĄ IMPLIKACINĘ PRIELAIDĄ"
REGARDING THE “FALSE CONDITIONAL PREMISE”

Author(s): Mindaugas Briedis, Jonas Dagys
Subject(s): Philosophy
Published by: Vilniaus Universiteto Leidykla
Keywords: Achilles and tortoise aporia; identity conditions; solutions of aporias

Summary/Abstract: We criticize the claim made by Èiurlionis, namely that mathematical solutions to Zeno’s aporia are unsatisfactory, as they rely on “a false conditional premise”. First, the rules of formal logic do not forbid deriving true statements from false statements, so even if mathematical solutions rely on a false premise this does not guarantee the falsity of their conclusion. Second, the truth value of the antecedent of the conditional depends on an empirical fact, so even granted that the consequent is false, the conditional statement should be viewed as contingent. Third, and most important, the statement in the consequent admits of two interpretations: a strict qualitative interpretation of identity of space-time points, which makes the statement nomologically necessarily false but irrelevant to the Zeno’s aporia; and a looser mathematical quantitative interpretation of the identity of space-time points, which makes the statement relevant but not only contingently false. We conclude that there is no reason to accept the claim that this conditional statement is false and that Èiurlionis takes a wrong path in his attempt to resolve Zeno’s aporias.

  • Issue Year: 2006
  • Issue No: 70
  • Page Range: 176-181
  • Page Count: 6
  • Language: Lithuanian