A. Suppose that x and y are variable names that already refer to Boolean values. Write an expression (not a statement!) that evaluates to True iff at least one of the variables is False. # TODO: Write your expression here B. Suppose that x, y, and z are variable names that already refer to Boolean values. Write an expression (not a statement!) that evaluates to True iff at least two of the three variables (x, y, z) are True. # TODO: Write your expression here

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
Section: Chapter Questions
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A.
Suppose that x and y are variable names that already refer to Boolean values.
Write an expression (not a statement!) that evaluates to True iff at least one
of the variables is False.

# TODO: Write your expression here


B.
Suppose that x, y, and z are variable names that already refer to Boolean values.
Write an expression (not a statement!) that evaluates to True iff
at least two of the three variables (x, y, z) are True.

# TODO: Write your expression here

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