Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question

Build truth tables or abbreviated truth tables (on your own scratch paper) to determine whether the following arguments are valid or invalid.

 

(A v B) --> (C • D),  (X v ~Y) --> (~C • ~W),  (X v Z) --> (A • E),  ∴∴~X

Group of answer choices
A. Valid
B. Invalid
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