Verification And The Vienna Circle
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Transcript of Verification And The Vienna Circle
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“The Vienna Circle”!
Moritz Schlick !(1882 – 1936)
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Rudolf Carnap!(1891 – 1970)!
Kurt Gödel"(1906 – 1978)"
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Bertrand Russell(1872 – 1970)!
Ludwig Wittgenstein"(1989 – 1951)"
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correspondence theory of truth!
The truth of a proposition is determined by its correspondence
with empirical phenomena, not by its relationship to other propositions."
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coherence theory of truth!
The truth of a proposition is determined by its relationship to
other propositions, not by its correspondence with empirical
phenomena."
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coherence theory of truth:!“It is daytime between 11:00am
and 6:00pm.”!
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correspondence theory of truth: !“It is daytime because the sun is
up.”!
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Midnight in Sweden!
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verification principle!
A proposition is meaningful if its truth value is empirically verifiable."
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“First it is empiricist and positivist: there is knowledge only from experience… This sets the limits for the context of legitimate science.”"
Vienna Circle Manifesto!
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“Everyone at this picnic is having fun.”"
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“Everyone at this picnic is smiling.”"
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“Second, the scientific world-conception is marked by the application of a certain method, namely logical analysis.”"
Vienna Circle Manifesto!
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“What is empirically impossible still remains conceivable, but what is logically impossible is contradictory, and cannot therefore be thought at all.”"
Moritz Schlick,"“Positivism and Realism”"
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“There are five people at this picnic.”"
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“There are five people at this picnic, and they are also not at this picnic.”"
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“A proposition which is such that the world remains the same whether it be true or false simply says nothing about the world; it is empty and communicates nothing…”"
Moritz Schlick,"“Positivism and Realism”"
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“There are four visible people and twelve invisible people at this picnic.”"
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“There is a world.”"
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“The world was created by a higher being who left no proof of his existence.”"
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Vienna Circle vs. Descartes!