14 ideas
| 11022 | Gentzen introduced a natural deduction calculus (NK) in 1934 [Gentzen, by Read] |
| 11065 | The inferential role of a logical constant constitutes its meaning [Gentzen, by Hanna] |
| 11023 | The logical connectives are 'defined' by their introduction rules [Gentzen] |
| 11213 | Each logical symbol has an 'introduction' rule to define it, and hence an 'elimination' rule [Gentzen] |
| 13832 | Natural deduction shows the heart of reasoning (and sequent calculus is just a tool) [Gentzen, by Hacking] |
| 10067 | Gentzen proved the consistency of arithmetic from assumptions beyond arithmetic [Gentzen, by Musgrave] |
| 22687 | Maybe literary assessment is evaluating the artist as a suitable friend [Gaut] |
| 22686 | Formalists say aesthetics concerns types of beauty, or unity, complexity and intensity [Gaut] |
| 22690 | 'Moralism' says all aesthetic merits are moral merits [Gaut] |
| 22684 | Good ethics counts towards aesthetic merit, and bad ethics counts against it [Gaut] |
| 22689 | If we don't respond ethically in the way a work prescribes, that is an aesthetic failure [Gaut] |
| 22685 | Good art does not necessarily improve people (any more than good advice does) [Gaut] |
| 20721 | Punctuality and justice in dealings are excellent for raising a man in the world [Franklin] |
| 20720 | Time is money, ..credit is money, ..and money breeds more money [Franklin] |