Logic after Goedel This talk will briefly survey the epochal significance of Goedel's major theorems in proof theory, model theory and theory of computation, and then describe two extensions of that work: one, by myself, to the representation of prime numbers and one by Saul Kripke, which shows how post-Goedelian model theory can be used to prove the incompleteness theorem without Goedel numbering or diagonalization.