Learn how to write proofs

  • Learn the basic methods of mathematical proof using the DC Proof system
    • download our free, PC-based software and start writing simple mathematical proofs in minutes
    • innovative proof-by-pointing interface minimizes keystrokes and errors
    • each line of proof is verified as you enter it
  • Free, full-function download includes interactive, self-study tutorial
    • introduces symbolic logic and the basic methods of proof
    • includes worked examples, and exercises with hints and full solutions

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Screen Shot: Invoking the Conclusion Rulesimply point and click to obtain the result on line 3.