Added 1976-09-01 09:45:51
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D. Johnston
Logic 101
Post Date:
2017-10-23 09:45:51

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Designed for constructing derivations in introductory logic courses.

– Checks the syntax of symbolic sentences.
– Checks whether each line can be derived from previous lines.
– Indicates derivable lines by colour.
– Displays derivation rules for each derivable line.
– Completed derivations can be emailed.

Visit for a user guide.

NOTE: This app is based on the derivation system SD from The Logic Book. If your course uses a different textbook, this app will still be useful; but it’s a good idea to check with your instructor first.


  • Logic 101 Screenshot
  • Logic 101 Screenshot

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