Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
Home Q & A Board Humanities Religion and Philosophy
New Topic  
jtfortwengler jtfortwengler
wrote...
Go to Answer
Posts: 143
Rep: 0 0
A year ago
Consider this proof, (1.) E • [ ~ I • (~ D v I)] /∴ ~ D v F (2.) [ ~ I • (~ D v I)] • E (3.( ~ I • (~ D v I) (4.) ~ I (5.) (~ D v I) • ~ I (6.) ~ D v I (7.) ~ D (8.) ~ D v F What is the justification for line 3?

▸ 2 Simp

▸ 1, 2 Com

▸ 1, 3 MP
Textbook 
How to Think Logically

How to Think Logically


Edition: 2nd
Authors:
Read 44 times
1 Reply
Replies
Answer verified by a subject expert
dhk72dhk72
wrote...
#1
Posts: 148
Rep: 0 0
A year ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

jtfortwengler Author
wrote...

A year ago
You make an excellent tutor!
joyceess
wrote...

Yesterday
Thanks
Transonic
wrote...

2 hours ago
Just got PERFECT on my quiz
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1248 People Browsing
 116 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 1029
  
 147
  
 254
Your Opinion
Which industry do you think artificial intelligence (AI) will impact the most?
Votes: 352
Previous poll results: What's your favorite funny biology word?