Recent Posts  •  Latest Topics  •  Unresolved Questions
  
  
Top Posters
Since Sunday
19
9
o
6
m
6
J
5
C
4
t
4
s
4
a
4
C
4
d
4
z
4
Home Q & A Board Humanities Religion and Philosophy
New Topic  
cyberk cyberk
wrote...
Go to Answer
Posts: 34
Rep: 0 0
A month ago
Consider this proof, (1.) E • D (2.) ~ (E • D) ≡ O/∴ Ev~O (3.) [~ (E • D) ⊃ O] • [O ⊃ ~ (E • D)] (4.) [O ⊃ ~(E•D)]• [~(E•D) ⊃ O] (5.) O ⊃ ~ (E • D) (6.) ~ ~ (E • D) (7.) ~ O (8.) ~ O v E (9.) E v ~ O What is the justification for line 5?

▸ 4 Simp

▸ 4 Com

▸ 2, 1 MP
Textbook 
How to Think Logically

How to Think Logically


Edition: 2nd
Authors:
Read 7 times
1 Reply
Replies
Answer verified by a subject expert
edwardssheedwardsshe
wrote...
#1
Posts: 23
Rep: 0 0
A month ago
Sign in or Sign up in seconds to unlock everything for free
More questions for this book are available here
4 Simp
1

Related Topics

cyberk
wrote...
Posts: 34
Credits: 5

A month ago
This site is awesome
jbag1237
wrote...
Posts: 131
Credits: 125

Yesterday
Smart ... Thanks!
AlahuKakpar
wrote...
Posts: 79
Credits: 40

2 hours ago
Good timing, thanks!
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  98 People Browsing
 220 Signed Up Today
Start New Topic Take the Tour Study Tips Topics TrendingNew Browse by Textbook
Related Images
 174
 401
Your Opinion
Where do you get your textbooks?
Votes: 184
Previous poll results: Do you trust social media networks with protecting your privacy?