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註釋CD-ROM contains an updated and enhanced version of Tarski's World, which teaches the basics of first-order logic; Fitch, a program which allows the creation and checking of natural deduction proofs; Boole, a program which facilitates the creation of truth tables; Submit, an online grading facility that allows students to submit solutions to hundreds of computer-based exercises for immediate assessment; and the complete manuscript of the text in Adobe PDF format.