Top Posters
Since Sunday
21
A
8
7
w
6
R
5
o
5
A
5
t
5
m
5
t
5
h
5
S
5
New Topic  
aryaelfkind aryaelfkind
wrote...
Posts: 17
Rep: 0 0
2 weeks ago
Is “B ≡ (O ∙ ~K) .·. O v (K v ~B)” valid or invalid? In the truth table for determining the validity of this formula, which specific rows, if any, are relevant to showing this?

▸ invalid; 2nd and 4th rows

▸ invalid; 1st and 3rd rows

▸ valid; it has no rows showing invalidity
Textbook 

How to Think Logically


Edition: 2nd
Authors:
Read 4 times
1 Reply
Replies
Answer verified by a subject expert
ecunis1ecunis1
wrote...
Posts: 30
Rep: 0 0
2 weeks ago
Sign in or Sign up in seconds to unlock everything for free
More questions for this book are available here
valid; it has no rows showing invalidity

1

Related Topics

wrote...
Posts: 17
Credits: 10

2 weeks ago
Brilliant
wrote...
Posts: 85
Credits: 30

Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
wrote...
Posts: 81
Credits: 50

2 hours ago
this is exactly what I needed
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  73 People Browsing
 226 Signed Up Today
Related Images
 183
 208
 66
Your Opinion
Who's your favorite biologist?
Votes: 242