display all the ideas for this combination of philosophers
3 ideas
7801 | Possibilities can be logical, theoretical, physical, economic or human [Girle] |
15422 | Three conditionals theories: Materialism (material conditional), Idealism (true=assertable), Nihilism (no truth) [Burgess] |
15423 | It is doubtful whether the negation of a conditional has any clear meaning [Burgess] |