@article{gurevich1982existential, author = {Gurevich, Yuri}, title = {Existential Interpretation, II}, year = {1982}, month = {July}, abstract = {A method of existential interpretation was introduced in [2]. It allows proving undecidability of modest strata of many first order theories. Here we improve the method and its presentation, strengthen somewhat the previous results and prove a couple of new results. The reader is not supposed to be acquainted with [2]/}, url = {http://approjects.co.za/?big=en-us/research/publication/existential-interpretation-ii/}, pages = {103-120}, volume = {22}, }