please answer with proper explanation and step by step solution. 10)(Statement 1) b = 2b + 1;(Statement 2) b = b-3{b < 0}11)if (a == b)elseCompute the weakest precondition for the sequence of statements:{b > 1}Compute the weakest precondition for the selection construct.b = 2b + 1b = 2b;

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10) Compute the weakest precondition for the sequence of statements: (Statement 1) b = 2b + 1; (Statement 2) b = b-3{b < 0}

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

Problem 1PE

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Question

please answer with proper explanation and step by step solution.

10)
(Statement 1) b = 2b + 1;
(Statement 2) b = b-3{b < 0}
11)
if (a == b)
else
Compute the weakest precondition for the sequence of statements:
{b > 1}
Compute the weakest precondition for the selection construct.
b = 2b + 1
b = 2b;

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