9 ideas
10882 | Predicative definitions only refer to entities outside the defined collection [Horsten] |
16186 | The Barcan Formulas express how to combine modal operators with classical quantifiers [Simchen] |
16187 | The Barcan Formulas are orthodox, but clash with the attractive Actualist view [Simchen] |
16190 | BF implies that if W possibly had a child, then something is possibly W's child [Simchen] |
10884 | A theory is 'categorical' if it has just one model up to isomorphism [Horsten] |
10885 | Computer proofs don't provide explanations [Horsten] |
10881 | The concept of 'ordinal number' is set-theoretic, not arithmetical [Horsten] |
16655 | Different genera are delimited by modes of predication, which rest on modes of being [Aquinas] |
16188 | Serious Actualism says there are no facts at all about something which doesn't exist [Simchen] |