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forall x Calgary remix : an introduction to formal logic - Fall 2018 edition

Details:

  • Contributor: BC Open Textbook Project; BCcampus; Loftis, J. Robert; Thomas-Bolduc, Aaron; Zach, Richard
    Date:
    Created
    2018
    Summary:

    "This is a textbook on formal logic. The book is divided into eight parts. Part I introduces the topic and notions of logic in an informal way, without introducing a formal language yet. Parts II-IV concern truth-functional languages. In it, sentences are formed from basic sentences using a number of connectives ('or', 'and', 'not', 'if . . . then') which just combine sentences into more complicated ones. We discuss logical notions such as entailment in two ways: semantically, using the method of truth tables (in Part III) and proof-theoretically, using a system of formal derivations (in Part IV). Parts V-VII deal with a more complicated language, that of first-order logic. It includes, in addition to the connectives of truth-functional logic, also names, predicates, identity, and the so-called quantifiers. These additional elements of the language make it much more expressive than the truth-functional language, and we'll spend a fair amount of time investigating just how much one can express in it. Again, logical notions for the language of first-order logic are defined semantically, using interpretations, and proof-theoretically, using a more complex version of the formal derivation system introduced in Part IV. Part VIII covers an advanced topic: that of expressive adequacy of the truth-functional connectives"--BCcampus website.

    Subject(s): Logic | Textbooks
    Original Publisher: Calgary, forallx.openlogicproject.org
    Language(s): English
    Collection(s)/Series: BC Open Textbooks