Arithmetical transfinite induction and hierarchies of functions
Tom 141 / 1992
                    
                    
                        Fundamenta Mathematicae 141 (1992), 1-20                    
                                        
                        DOI: 10.4064/fm-141-1-1-20                    
                                    
                                                Streszczenie
We generalize to the case of arithmetical transfinite induction the following three theorems for PA: the Wainer Theorem, the Paris-Harrington Theorem, and a version of the Solovay-Ketonen Theorem. We give uniform proofs using combinatorial constructions.
 
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            