9 is even 7 is not odd or 9 is not even :: if 7 is odd then 9 is even b. if 7 is odd or 11 is odd then 9 is even 11 is not odd if 7 is odd then 9 is even C. 7 is not odd and 11 is odd 11 is not odd or 9 is even : if 7 is odd then 9 is even d. 7 is odd and 11 is odd 11 is odd or 9 is even : if 7 is odd then 9 is even 21) Select the correct expression for (?) in the proof segment below: 1. pr Hypothesis 2. PAq Hypothesis Simplification, 2 3. (?) 4 r Modus Tollens, 1, 3 a. p b. q c. pv q d. p^q
9 is even 7 is not odd or 9 is not even :: if 7 is odd then 9 is even b. if 7 is odd or 11 is odd then 9 is even 11 is not odd if 7 is odd then 9 is even C. 7 is not odd and 11 is odd 11 is not odd or 9 is even : if 7 is odd then 9 is even d. 7 is odd and 11 is odd 11 is odd or 9 is even : if 7 is odd then 9 is even 21) Select the correct expression for (?) in the proof segment below: 1. pr Hypothesis 2. PAq Hypothesis Simplification, 2 3. (?) 4 r Modus Tollens, 1, 3 a. p b. q c. pv q d. p^q
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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Please send me answer within 10 min!! I will rate you good for sure!! Please answer both question with explanation!!
For the first half which statement is invalid and answer both please !!
Transcribed Image Text:9 is even
7 is not odd or 9 is not even
:: if 7 is odd then 9 is even
b.
if 7 is odd or 11 is odd then 9 is even
11 is not odd
: if 7 is odd then 9 is even
C.
7 is not odd and 11 is odd
11 is not odd or 9 is even
:. if 7 is odd then 9 is even
d.
7 is odd and 11 is odd
11 is odd or 9 is even
:. if 7 is odd then 9 is even
21) Select the correct expression for (?) in the proof segment below:
1.
pr
Hypothesis
2. p^q
Hypothesis
3.
(?)
Simplification, 2
4
r
Modus Tollens, 1, 3
a. p
b. q
c. pv q
d. p^q
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