9 ideas
10365 | We might use 'facta' to refer to the truth-makers for facts [Mellor, by Schaffer,J] |
15549 | If it were true that nothing at all existed, would that have a truthmaker? [Lewis] |
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] |
4785 | Causal statements relate facts (which are whatever true propositions express) [Mellor, by Psillos] |
8408 | Probabilistic causation says C is a cause of E if it increases the chances of E occurring [Mellor, by Tooley] |