3 events with tag "model theory"
1915
ID: 397
Leopold Löwenheim proves Löwenheim theorem: if a first-order sentence has a model, it has a countable model
ID: 397
1920
ID: 398
Thoralf Skolem extends Löwenheim's theorem to what becomes Löwenheim-Skolem theorem
ID: 398
1930
ID: 399
Jacques Herbrand proves Herbrand's theorem, fundamental result connecting proof theory and model theory
ID: 399