Logic: Possible Typo in Textbook

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SUMMARY

The discussion centers on a potential typo in the textbook "Understanding Symbolic Logic, 5th ed." by Virginia Klenk. A participant identifies that the formula presented in the book is incorrectly marked as false due to a 'T' at the bottom of a computation diagram, which should actually be an 'F'. This correction confirms that the highlighted words in the textbook are accurate, resolving the confusion regarding the formula's validity.

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  • Ability to interpret diagrams in mathematical contexts
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  • Review the corrections in "Understanding Symbolic Logic, 5th ed." by Virginia Klenk
  • Study common typographical errors in academic texts
  • Learn about logical notation and its implications in symbolic logic
  • Explore diagrammatic reasoning in logic
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Students of logic, educators teaching symbolic logic, and anyone involved in textbook publishing or editing who seeks to understand common errors in academic materials.

Dembadon
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It's possible that I'm not understanding the diagram and their reasoning, but I wanted to check with some people here before I come to a conclusion.

Homework Statement



Klenk-PF.jpg


Homework Equations


The Attempt at a Solution



I don't understand why the book says the formula is false, yet there is a "T" at the bottom of the computation.

The book is, Understanding Symbolic Logic, 5th ed. by Virginia Klenk.
 
Last edited:
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The 'T' at the bottom of the diagram is a typo. It should be an 'F'. The words you highlighted are correct.
 
Stephen Tashi said:
The 'T' at the bottom of the diagram is a typo. It should be an 'F'. The words you highlighted are correct.

Thank you for verifying, Stephen.
 

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