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More Logic Files

### More Logic Files

In this month's The HP Palmtop Paper ON DISK, you'll find more files that will help you review and practice your logic skills.

1. LOGIC is a collection of text files and a database file that are the fruits of having survived a college course in Logic. If you ever decide to take a course in Logic, we hope the instructor won't mind if you bring along your Palmtop.

2. TTM contains a program called TRUTH.EXE and a companion documentation file. It performs basically the same function as the Lotus 1-2-3 spreadsheet program with regard to truth table analysis. It's the work of Michael P. Kelly and is copyrighted 1989. Its coding is different but you might like it as a stand-alone program.

3. LOGICP contains the LOGIC.EXE program which is actually an almost complete course in categorical and syllogistic logic. It's not merely a "read-only" program. You can interact with the program at spots to test out your growing skills in this style of Logic. You'll also wear out the [ON] / and [ON] * buttons trying to view a color-enhanced program in black and white.

CAUTION: Do not use the MONO8025.COM file in the Palmtop's D:\BIN directory along with the LOGIC.EXE file. Using the two programs together may cause your Palmtop to lock up and require you to press [CTRL][Shift][ON] and answer to recover. Figure 2: Columns A through D constitute a table of all the possible truth values for four statements. By entering formulas (in columns E through K) that represent the premises In the argument presented in this article, you can determine the argument's validity. In this case, column J contains a formula representing the conclusion of the argument. Because this formula returns all ones, which Indicate truth, you know that the whole argument is valid.