by
on
| INTRODUCTION | ||
|---|---|---|
| §1. Recent work in mathematics has shown a tendency towards rigour of proof and sharp definition of concepts. | ||
| §2. This critical examination must ultimately extend to the concept of number itself. The aim of proof. | ||
| §3. Philosophical motives for such an enquiry: the controversies as to whether the laws of arithmetic are analytic or synthetic, a priori or a poteriori. Sense of these expressions. | ||
| §4. Task of the present work. | ||
| I. | VIEWS of CERTAIN WRITERS on the NATURE of ARITHMETICAL PROPOSITIONS | |
| Are numerical formulae provable? | §5. | |
| §6. | ||
| §7. | ||
| §8. | ||
| Are the laws of arithmetic inductive truths? | §9. | |
| §10. | ||
| §11. | ||
| Are the laws of arithmetic synthetic a priori or analytic? | §12. | |
| §13. | ||
| §14. | ||
| §15. | ||
| §16. | ||
| §17. | ||
| II. | VIEWS of CERTAIN WRITERS on the CONCEPT of NUMBER | |
| §18. | ||
| §19. | ||
| §20. | ||
| Is number a property of external things? | §21. | |
| §22. | ||
| §23. | ||
| §24. | ||
| §25. | ||
| Is number something subjective? | §26. | |
| §27. | ||
| Numbers as sets. | §28. | |
| III. | VIEWS on UNITY and ONE | |
| Does the number word "one" express a property of objects? | §.29 | |
| §30. | ||
| §31. | ||
| §32. | ||
| §33. | ||
| Are units identical with one another? | §34. | |
| §35. | ||
| §36. | ||
| §37. | ||
| §38. | ||
| §39. | ||
| Attempts to overcom the difficulty. | §40. | |
| §41. | ||
| §42. | ||
| §43. | ||
| §44. | ||
| Solution of the difficulty. | §45. | |
| §46. | ||
| §47. | ||
| §48. | ||
| §49. | ||
| §50. | ||
| §51. | ||
| §52. | ||
| §53. | ||
| §54. | ||
| IV. | The CONCEPT of NUMBER | |
| Any individual number is a self-subsistent object. | §55. | |
| §56. | ||
| §57. | ||
| §58. | ||
| §59. | ||
| §60. | ||
| §61. | ||
| To obtain the concept of number, we must fix the sense of a numerical identity. | §62. | |
| §63. | ||
| §64. | ||
| §65. | ||
| §66. | ||
| §67. | ||
| §68. | ||
| §69. | ||
| One definition completed and its worth proved. | §70. | |
| §71. | ||
| §72. | ||
| §73. | ||
| §74. | ||
| §75. | ||
| §76. | ||
| §77. | ||
| §78. | ||
| §79. | ||
| §80. | ||
| §81. | ||
| §82. | ||
| §83. | ||
| Infinite numbers. | §84. | |
| §85. | ||
| §86. | ||
| V. | CONCLUSIONS | |
| §87. | ||
| §88. | ||
| §89. | ||
| §90. | ||
| §91. | ||
| Other numbers. | §92. | |
| §93. | ||
| §94. | ||
| §95. | ||
| §96. | ||
| §97. | ||
| §98. | ||
| §99. | ||
| §100. | ||
| §101. | ||
| §102. | ||
| §103. | ||
| §104. | ||
| §105. | ||
| §106-9. | ||
"In the enquiry that follows, I have kept to three fundamental principles:
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created 1998/11/28 modified 1998/11/30