Combining Philosophers

Ideas for Rescher,N/Oppenheim,P, Robert Pasnau and Diogenes Laertius

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13. Knowledge Criteria / A. Justification Problems / 2. Justification Challenges / a. Agrippa's trilemma

1816	Sceptics say demonstration depends on self-demonstrating things, or indemonstrable things [Diog. Laertius]