What is a number?
1:22:01
The Rise of Rigor in the Calculus
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The Gödel incompleteness phenomenon
11:21
What is a Number? - Numberphile
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Set Theory and the Philosophy of Set Theory
58:16
Limits of Logic: The Gödel Legacy
1:27:20
Climb to Infinity!
1:26:30
Joel David Hamkins: Philosophy of mathematics and truth
1:24:10