Combining Philosophers

Ideas for H.Putnam/P.Oppenheim, Gottlob Frege and Alain Badiou

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2 ideas

13. Knowledge Criteria / B. Internal Justification / 4. Foundationalism / d. Rational foundations
Justifications show the ordering of truths, and the foundation is what is self-evident [Frege, by Jeshion]
     Full Idea: Frege thought that the relations of epistemic justification in a science mirrors the natural ordering of truths: in particular, what is self-evident is selbstverstandlich.
     From: report of Gottlob Frege (Grundlagen der Arithmetik (Foundations) [1884], §02) by Robin Jeshion - Frege's Notion of Self-Evidence 1
     A reaction: I'm not sure that I can accept a 'natural ordering of truths'. Is there a natural ordering of the facts of the world? The most I can see is a direction to causation. Maybe inferences have a direction, but humans intrude on those.
13. Knowledge Criteria / C. External Justification / 2. Causal Justification
Psychological logic can't distinguish justification from causes of a belief [Frege]
     Full Idea: With the psychological conception of logic we lose the distinction between the grounds that justify a conviction and the causes that actually produce it.
     From: Gottlob Frege (Logic [1897] [1897])
     A reaction: Thus Frege kicked the causal theory of justification well into touch long before it had even been properly formulated. That is not to say that there is no psychological aspect to logic, because there is.