Carnap, Rudolf
Introduction to symbolic logic and its
Dover Publications, 1958
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Copi, Irving M.
Symbolic logic
Prentice-Hall, 1979
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Dalen, Dirk van
Logic and structure
Springer-Verlag, 1994
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Standley, Gerald B.
New methods in symbolic logic
Houghton Mifflin, 1971
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Gemignani, Michael C.
Basic concepts of mathematics logic
Addison-Wesley, 1968
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