15 ideas
22334 | Analysis must include definitions, search for simples, concept analysis, and Kant's analysis [Glock] |
10757 | Henkin semantics has a second domain of predicates and relations (in upper case) [Rossberg] |
10751 | Second-order logic needs the sets, and its consequence has epistemological problems [Rossberg] |
10759 | There are at least seven possible systems of semantics for second-order logic [Rossberg] |
10753 | Logical consequence is intuitively semantic, and captured by model theory [Rossberg] |
10752 | Γ |- S says S can be deduced from Γ; Γ |= S says a good model for Γ makes S true [Rossberg] |
10754 | In proof-theory, logical form is shown by the logical constants [Rossberg] |
10756 | A model is a domain, and an interpretation assigning objects, predicates, relations etc. [Rossberg] |
10758 | If models of a mathematical theory are all isomorphic, it is 'categorical', with essentially one model [Rossberg] |
10761 | Completeness can always be achieved by cunning model-design [Rossberg] |
10755 | A deductive system is only incomplete with respect to a formal semantics [Rossberg] |
22332 | German and British idealism is not about individual ideas, but the intelligibility of reality [Glock] |
22335 | The variety of uses of 'game' may be that it has several meanings, and isn't a single concept [Glock] |
22336 | We might say that the family resemblance is just a consequence of meaning-as-use [Glock] |
467 | A virtue is a combination of intelligence, strength and luck [Ion] |