Crossley, J. N.; Ash, C. J.; Brickhill, C. J.; Stillwell, J. C.; Williams, N. H. What is mathematical logic? Reprint of the 1972 original. (English) Zbl 1141.03300 New York, NY: Dover Publications (ISBN 0-486-26404-1). 82 p. (1990). MSC: 03-01 03-XX × Cite Format Result Cite Review PDF
Williams, Neil H. Combinatorial set theory. (English) Zbl 0362.04008 Studies in Logic and the Foundations of Mathematics. Vol. 91. Amsterdam - New York - Oxford: North-Holland Publishing Company. XI, 208 p. $ 26.75; Dfl. 65.00 (1977). MSC: 03E05 03-02 × Cite Format Result Cite Review PDF
Crossley, J. N.; Ash, C. J.; Brickhill, C. J.; Stillwell, J. C.; Williams, N. H. What is mathematical logic? (English) Zbl 0251.02001 London-Oxford-New York: Oxford University Press. IX, 82 p. £1.40 (1972). MSC: 03-01 03-XX × Cite Format Result Cite Review PDF