11 ideas
12170 | Amusement rests on superiority, or relief, or incongruity [Scruton] |
12173 | The central object of amusement is the human [Scruton] |
12169 | Since only men laugh, it seems to be an attribute of reason [Scruton] |
12172 | Objects of amusement do not have to be real [Scruton] |
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] |
10067 | Gentzen proved the consistency of arithmetic from assumptions beyond arithmetic [Gentzen, by Musgrave] |
21982 | I only wish I had such eyes as to see Nobody! It's as much as I can do to see real people. [Carroll,L] |
12174 | Only rational beings are attentive without motive or concern [Scruton] |