All freshmen must take writing. Caroline is a freshman. Therefore, Caroline must take writing. Select one: o a. Valid by modus tollens O b. Not valid O c. Valid by modus ponens

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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All freshmen must take writing.
Caroline is a freshman.
Therefore, Caroline must take writing.
Select one:
o a. Valid by modus tollens
O b. Not valid
O c. Valid by modus ponens
Transcribed Image Text:All freshmen must take writing. Caroline is a freshman. Therefore, Caroline must take writing. Select one: o a. Valid by modus tollens O b. Not valid O c. Valid by modus ponens
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