I am a graduate student of Informatics.
Studying mathematical logic I've just started discovering it connection to philosophy. Following this way I started reading something about old and modern philosopher. My first source of information is internet, especially Wikipedia, but I am meeting a lots of difficulties because of the use of terms I don't know the meaning.
So, I want to ask you a suggestion of a minimal set of books to read in order to get the main concepts related to philosophy. I am mainly interested in the explanation of the meaning of the more general terms ( e.g. judgment, subject, object, extension, ecc.. ) I am also interested about a pan on the thoughts of the main philosopher.