Countably-categorical Boolean algebras with distinguished ideals D. E. Pal'chunov OriginalPaper Pages: 121 - 135
Subalgebras and homomorphisms of semi-Post algebras Nguyen Cat HoHelena Rasiowa OriginalPaper Pages: 161 - 175
A note on syntactical and semantical functions Adam GajdaMichał KrynickiLesław Szczerba OriginalPaper Pages: 177 - 185
A simplification of a completeness proof of Guaspari and Solovay Dick H. J. de Jongh OriginalPaper Pages: 187 - 192
Generic generalized Rosser fixed points Dick H. J. de JonghFranco Montagna OriginalPaper Pages: 193 - 203