The Game of Logic by Lewis Carroll
page 58 of 121 (47%)
page 58 of 121 (47%)
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4. Some x are not-y.
5. Some not-y are x. 6. No not-x are y. 7. Some not-x are not-y. 8. All not-x are not-y. 9. Some not-y exist. 10. No not-x exist. 11. Some y are x, and some are not-x. 12. All x are y, and all not-y are not-x. [See pp. 62, 3] Taking "nations" as Universe; x="civilised"; y="warlike"; 13. No uncivilised nation is warlike. 14. All unwarlike nations are uncivilised. 15. Some nations are unwarlike. |
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