You have chosen 'On the Question of Absolute Undecidability' by Peter Koellner, 'Guidebook to Wittgenstein's Tractatus' by Michael Morris and 'Preface to 'Principles of Philosophy'' by Ren Descartes
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| B. | Modern Physics | |
| C. | Space | |
| D. | Time | |
| E. | Cosmology | |
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