1．A Set of Postulates for the Foundation of Logic&A.Church 2
2．A Set of Postulates for the Foundation of Logic'(Second Paper)&A.Church 23
3．An Unsolvable Problem of Elementary Number Theory&A.Church 49
4．A Note on the Entscheidungsproblem&A.Church 68
5．Correction to a Note on the Entscheidungsproblem&A.Church 70
6．The Constructive Second Number Class&A.Church 72
7．Formal Definitions in the Theory of Ordinal Numbers&A.Church&S.C.Kleene 81
8．Some Theorems on Definability&Decidability&A.Church&W.V.Quine 92
9．Grundlagen der kombinatorischen Logik.Teil 1&H.B.Curry 101
10．Grundlagen der kombinatorischen Logik.Teil 2&H.B.Curry 129
11．Some Additions to the Theory of Combinators&H.B.Curry 175
12．Arithmetical Problems&Recursively Enumerable Predicates&M.Davis 183
13．Die Vollst？ndigkeit der Axiome de logischen Funktionenkalküls&K.G？del 192
14．？ber formal unentscheidbare S？tze der Principia Mathematica und verwandter System 1.&K.G？del 204
15．？ber die Lange yon Beweisen&K.G？del 225
16．Some Classes of Recursive Funct'ons&A.Grzegorczyk 232
17．Computable Functionals&A.Grzegorczyk 275
18．On the Definition of Computable Functionals&A.Grzegorczyk 310
19．Some Proofs of Undecidability of Arithmetic&A.Grzegorczyk 318
20．A Theory of Positive Integers in Formal Logic.Part 1&S.C.Kleene 330
21．A Theory of Positive Integers in Formal Logic.Part 2&S.C.Kleene 351
22．General Recursive Functions of Natural Numbers&S.C.Kleene 377
23．λ-Definability&Recursiveness&S.C.Kleene 393
24．A Note on Recursive Functions&S.C.Kleene 407
25．Recursive Predicates&Quantifiers&S.C.Kleene 410
26．On the Forms of the Predicates in the Theory of Constructive Ordinals&S.C.Kleene 443
27．On the Interpretation of Intuitionistic Number Theory&S.C.Kleene 461
28．A Symmetric Form of G？del's Theorem&S.C.Kleene 477
29．The Upper Semi-Lattice of Degrees of Recursive Unsolvability&S.C.Kleene 480
30．On the Forms of the Predicates in the Theory of Constructive Ordinals&S.C.Kleene 509
31．Arithmetical Predicates&Function Quantifiers&S.C.Kleene 533
32．Hierarchies of Number-Theoretic Predicates&S.C.Kleene 562