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Ideas for 'talk', 'Remarks on the Foundations of Mathematics' and 'On Second-Order Logic'

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2 ideas

6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / e. Peano arithmetic 2nd-order

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Many concepts can only be expressed by second-order logic [Boolos]

6. Mathematics / C. Sources of Mathematics / 6. Logicism / a. Early logicism

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Two and one making three has the necessity of logical inference [Wittgenstein]