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Ideas for 'fragments/reports', 'Unpublished Writings 1872-74' and 'Meditations'
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2 ideas
6. Mathematics / A. Nature of Mathematics / 1. Mathematics
2252
Surely maths is true even if I am dreaming?
[Descartes]
2430
I can learn the concepts of duration and number just from observing my own thoughts
[Descartes]