I haven't looked at too many, but I've always found this one very comprehensive:
H.-D Ebbinghaus, J. Flum, and W. Thomas. Mathematical Logic. 2nd ed. NY: Springer-Verlag, 1994.
Hi, I don't know much about mathematical logic (just a few things in set theory), I'm looking for some books that I could have a broad understanding of mathematical logic with. Could you help me with the books I ought to read?
Thanks for helping.
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Discrete Mathematics/Set theory - Wikibooks, collection of open-content textbooks
Discrete Mathematics/Logic - Wikibooks, collection of open-content textbooks