The Game of Logic by Lewis Carroll
page 20 of 121 (16%)
page 20 of 121 (16%)
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Symbols. | Meanings. _______________|_________________________________ ----- | | | | | | | Some y are x'; | | | i.e. Some nice are not-new. ----- | | | | | 1 | | | | | ----- | | ----- | | | | No y are x; | 0 | | i.e. No nice are new. | | | ----- | [Observe that this is merely another way of | | | expressing "No new are nice."] | | | | | | ----- | | ----- | | | | | | | No y are x'; | | | i.e. No nice are not-new. ----- | | | | | 0 | | |
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